Tag Archives: Confirm

cmdlet, Service, Set

Set-Service

NAME
    Set-Service

SYNOPSIS
    Starts, stops, and suspends a service, and changes its properties.

SYNTAX
    Set-Service [-Name] <string> [-Description <string>] [-DisplayName <string>] [-PassThru] [-StartupType {Automatic | Manual | Disabled}] [-Status <string>] [-ComputerName <string[]>] [-Confirm] [-WhatIf] [<CommonParameters>]

    Set-Service [-Description <string>] [-DisplayName <string>] [-InputObject <ServiceController>] [-PassThru] [-StartupType {Automatic | Manual | Disabled}] [-Status <string>] [-ComputerName <string[]>] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Set-Service cmdlet changes the properties of a local or remote service, including the status, description, display name, and start mode. You can use this cmdlet to start, stop, or suspend (pause) a service. To identify the service, enter its service name or submit a service object, or pipe a service name or service object to Set-Service.

PARAMETERS
    -ComputerName <string[]>
        Specifies one or more computers. The default is the local computer.

        Type the NetBIOS name, an IP address, or a fully qualified domain name of a remote computer. To specify the local computer, type the computer name, a dot (.), or “localhost”.

        This parameter does not rely on Windows PowerShell remoting. You can use the ComputerName parameter of Set-Service even if your computer is not configured to run remote commands.

        Required?                    false
        Position?                    named
        Default value                local computer
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Description <string>
        Specifies a new description for the service.

        The service description appears in Services in Computer Management. Description is not a property of the ServiceController object that Get-Service gets. To see the service description, use Get-WmiObject to get a Win32_Service object that represents the service.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -DisplayName <string>
        Specifies a new display name for the service.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -InputObject <ServiceController>
        Specifies a ServiceController object that represents the service to be changed. Enter a Variable that contains the object, or type a command or expression that gets the object, such as a Get-Service command. You can also pipe a service object to Set-Service.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     true (ByValue)
        Accept wildcard characters? false

    -Name <string>
        Specifies the service name of the service to be changed. Wildcards are not permitted. You can also pipe a service name to Set-Service.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -PassThru [<SwitchParameter>]
        Returns objects that represent the services that were changed. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -StartupType <ServiceStartMode>
        Changes the start mode of the service. Valid values for StartupType are:

        — Automatic: Start when the system starts.
        — Manual: Starts only when started by a user or program.
        — Disabled: Cannot be started.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Status <string>
        Starts, stops, or suspends (pauses) the services. Valid values are:

        — Running: Starts the service.
        — Stopped: Stops the service.
        — Paused: Suspends the service.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.ServiceProcess.ServiceController, System.String
        You can pipe a service object or a string that contains a service name to Set-Service.

OUTPUTS
    None
        This cmdlet does not return any objects.

NOTES

        To use Set-Service on Windows Vista and later versions of Windows, start Windows PowerShell with the “Run as administrator” option.

        Set-Service can control services only when the current user has permission to do so. If a command does not work correctly, you might not have the required permissions.

        To find the service names and display names of the services on your system, type “Get-Service“. The service names appear in the Name column and the display names appear in the DisplayName column.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Set-Service -Name lanmanworkstation -DisplayName “LanMan Workstation”

    Description
    ———–
    This command changes the display name of the lanmanworkstation service to “LanMan Workstation”. (The default is “Workstation”.)

    ————————– EXAMPLE 2 ————————–

    C:\PS>Get-WmiObject win32_service -filter “name = ‘SysmonLog'”

    ExitCode : 0
    Name     : SysmonLog
    ProcessId : 0
    StartMode : Manual
    State     : Stopped
    Status    : OK

    C:\PS> Set-Service sysmonlog -StartupType automatic

    C:\PS> Get-WmiObject win32_service -filter “name = ‘SysmonLog'”

    ExitCode : 0
    Name     : SysmonLog
    ProcessId : 0
    StartMode : Auto
    State     : Stopped
    Status    : OK

    C:\PS> Get-WmiObject win32_service | Format-Table Name, StartMode -auto

    Name                                 StartMode
    —-                                 ———
    AdtAgent                             Auto
    Alerter                             Disabled
    ALG                                 Manual
    AppMgmt                             Manual
    …

    Description
    ———–
    These commands get the startup type of the Performance Logs and Alerts (SysmonLog) service, set the start mode to automatic, and then display the result of the change.

    These commands use the Get-WmiObject cmdlet to get the Win32_Service object for the service, because the ServiceController object that Get-Service returns does not include the start mode.

    The first command uses the Get-WmiObject cmdlet to get the Windows Management Instrumentation (WMI) object that represents the SysmonLog service. The default output of this command displays the start mode of the service.

    The second command uses Set-Service to change the start mode to automatic. Then, the first command is repeated to display the change.

    The final command displays the start mode of all services on the computer.

    ————————– EXAMPLE 3 ————————–

    C:\PS>Set-Service -Name Schedule -ComputerName S1 -Description “Configures and schedules tasks.”

    C:\PS> Get-WmiObject win32_service -ComputerName s1 | Where-Object {$_.Name -eq “Schedule”} | Format-List Name, Description

    Description
    ———–
    These commands change the description of the Task Scheduler service on the S1 remote computer and then display the result.

    These commands use the Get-WmiObject cmdlet to get the Win32_Service object for the service, because the ServiceController object that Get-Service returns does not include the service description.

    The first command uses a Set-Service command to change the description. It identifies the service by using the service name of the service, “Schedule”.

    The second command uses the Get-WmiObject cmdlet to get an instance of the WMI Win32_Service that represents the Task Scheduler service. The first element in the command gets all instances of the Win32_service class.

    The pipeline operator (|) passes the result to the Where-Object cmdlet, which selects instances with a value of “Schedule” in the Name property.

    Another pipeline operator sends the result to the Format-List cmdlet, which formats the output as a list with only the Name and Description properties.

    ————————– EXAMPLE 4 ————————–

    C:\PS>Set-Service winrm -Status Running -PassThru -ComputerName Server02

    Description
    ———–
    This command starts the WinRM service on the Server02 computer. The command uses the Status parameter to specify the desired status (“running”) and the PassThru parameter to direct Set-Service to return an object that represents the WinRM service.

    ————————– EXAMPLE 5 ————————–

    C:\PS>Get-Service schedule -ComputerName S1, S2 | Set-Service -Status paused

    Description
    ———–
    This command suspends the Schedule service on the S1 and S2 remote computers. It uses the Get-Service cmdlet to get the service. A pipeline operator (|) sends the service to the Set-Service cmdlet, which changes its status to “Paused”.

    ————————– EXAMPLE 6 ————————–

    C:\PS>$s = Get-Service schedule

    C:\PS> Set-Service -inputobject $s -Status stopped

    Description
    ———–
    These commands stop the Schedule service on the local computer.

    The first command uses the Get-Service cmdlet to get the Schedule service. The command saves the service in the $s Variable.

    The second command uses the Set-Service cmdlet to change the status of the Schedule service to “Stopped”. It uses the InputObject parameter to submit the service stored in the $s Variable, and it uses the Status parameter to specify the desired status.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113399
    Get-Service
    Start-Service
    Stop-Service
    Restart-Service
    Resume-Service
    Suspend-Service
    New-Service

Acl, cmdlet, Set

Set-Acl

NAME
    Set-Acl

SYNOPSIS
    Changes the security descriptor of a specified resource, such as a file or a Registry key.

SYNTAX
    Set-Acl [-Path] <string[]> [-AclObject] <ObjectSecurity> [-Exclude <string[]>] [-Filter <string>] [-Include <string[]>] [-Passthru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

DESCRIPTION
    The Set-Acl cmdlet changes the security descriptor of a specified resource, such as a file or a Registry key, to match the values in a security descriptor that you supply.

    To use Set-Acl, use the Path parameter to identify the resource whose security descriptor you want to change, and use the AclObject parameter to supply a security descriptor that has the values you want to apply. Set-Acl uses the value of the AclObject parameter as a model and changes the values in the resource’s security descriptor to match the values in the AclObject parameter.

PARAMETERS
    -AclObject <ObjectSecurity>
        Specifies an ACL with the desired property values. Set-Acl changes the ACL of resource specified by the Path parameter to match the values in the specified security object.

        You can save the output of a Get-Acl command in a Variable and then use the AclObject parameter to pass the Variable, or type a Get-Acl command.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     true (ByValue)
        Accept wildcard characters? false

    -Exclude <string[]>
        Omits the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as “*.txt”. Wildcards are permitted.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Filter <string>
        Specifies a filter in the provider’s format or language. The value of this parameter qualifies the Path parameter. The syntax of the filter, including the use of wildcards, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when retrieving the objects, rather than having Windows PowerShell filter the objects after they are retrieved.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Include <string[]>
        Changes only the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as “*.txt”. Wildcards are permitted.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Passthru [<SwitchParameter>]
        Returns an object representing the security descriptor. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Path <string[]>
        Identifies the resource whose security descriptor you want to change. Enter the path to a resource, such as a path to a file or Registry key. Wildcards are permitted.

        If you pass a security object to Set-Acl (either by using the AclObject parameter or by passing an object from Get-Acl to Set-Acl), and you omit the Path parameter (name and value), Set-Acl uses the path that is included in the security object.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -UseTransaction [<SwitchParameter>]
        Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_transactions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.Security.AccessControl.ObjectSecurity
        You can pipe a security descriptor to Set-Acl.

OUTPUTS
    None or security object
        By default, Set-Acl does not generate any output. However, if you use the -Passthru parameter, it generates a security object. The type of the security object depends on the type of the resource.

NOTES

        The Set-Acl cmdlet is supported by the Windows PowerShell file system and Registry providers. As such, you can use it to change the security descriptors of files, directories, and Registry keys.

        When specifying multiple values for a parameter, use commas to separate the values. For example, “<parameter-name> <value1>, <value2>”.

    ————————– EXAMPLE 1 ————————–

    C:\PS>$DogACL = Get-Acl c:\dog.txt

    C:\PS>Set-Acl -Path C:\cat.txt -AclObject $DogACL

    Description
    ———–
    These commands copy the values from the security descriptor of the Dog.txt file to the security descriptor of the Cat.txt file. When the commands complete, the security descriptors of the Dog.txt and Cat.txt files are identical.

    The first command uses the Get-Acl cmdlet to get the security descriptor of the Dog.txt file. The assignment operator (=) stores the security descriptor in the value of the $DogACL Variable.

    The second command uses Set-Acl to change the values in the ACL of Cat.txt to the values in $DogACL.

    The value of the Path parameter is the path to the Cat.txt file. The value of the AclObject parameter is the model ACL, in this case, the ACL of Dog.txt as saved in the $DogACL Variable.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Get-Acl c:\dog.txt | Set-Acl -Path C:\cat.txt

    Description
    ———–
    This command is almost the same as the command in the previous example, except that it uses a pipeline operator to send the security descriptor retrieved in a Get-Acl command to a Set-Acl command.

    The first command uses the Get-Acl cmdlet to get the security descriptor of the Dog.txt file. The pipeline operator (|) passes an object that represents the Dog.txt security descriptor to the Set-Acl command.

    The second command uses Set-Acl to apply the security descriptor of Dog.txt to Cat.txt. When the command completes, the ACLs of the Dog.txt and Cat.txt files are identical.

    ————————– EXAMPLE 3 ————————–

    C:\PS>$newACL = Get-Acl file0.txt

    C:\PS>Get-ChildItem c:\temp -recurse -Include *.txt -force | Set-Acl -AclObject $newacl

    Description
    ———–
    These commands apply the security descriptors in the File0.txt file to all text files in the C:\Temp directory and all of its subdirectories.

    The first command gets the security descriptor of the File0.txt file in the current directory and uses the assignment operator (=) to store it in the $newACL Variable.

    The first command in the pipeline uses the Get-ChildItem cmdlet to get all of the text files in the C:\Temp directory. The Recurse parameter extends the command to all subdirectories of C:\temp. The Include parameter limits the files retrieved to those with the “.txt” file name extension. The Force parameter gets hidden files, which would otherwise be excluded. (You cannot use “c:\temp\*.txt”, because the Recurse parameter works on directories, not on files.)

    The pipeline operator (|) sends the objects representing the retrieved files to Set-Acl command, which applies the security descriptor in the AclObject parameter to all of the files in the pipeline.

    In practice, it is best to use the Whatif parameter with all Set-Acl commands that can affect more than one resource. In this case, the second command in the pipeline would be “Set-Acl -AclObject $newacl -WhatIf“. This command lists the files that would be affected by the command. After reviewing the result, you can run the command again without the Whatif parameter.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113389
    Get-Acl

Alias, cmdlet, Set

Set-Alias

NAME
    Set-Alias

SYNOPSIS
    Creates or changes an Alias (alternate name) for a cmdlet or other command element in the current Windows PowerShell session.

SYNTAX
    Set-Alias [-Name] <string> [-Value] <string> [-Description <string>] [-Force] [-Option {None | ReadOnly | Constant | Private | AllScope}] [-PassThru] [-Scope <string>] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Set-Alias cmdlet creates or changes an Alias (alternate name) for a cmdlet or for a command element, such as a Function, a script, a file, or other executable. You can also use Set-Alias to reassign a current Alias to a new command, or to change any of the properties of an Alias, such as its description. Unless you add the Alias to the Windows PowerShell profile, the changes to an Alias are lost when you exit the session or close Windows PowerShell.

PARAMETERS
    -Description <string>
        Specifies a description of the Alias. You can type any string. If the description includes spaces, enclose it quotation marks.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Allows the cmdlet to set a read-only Alias. Use the Option parameter to create a read-only Alias. The Force parameter cannot set a constant Alias.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Name <string>
        Specifies the new Alias. You can use any alphanumeric characters in an Alias, but the first character cannot be a number.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Option <ScopedItemOptions>
        Sets the value of the Options property of the Alias.

        Valid values are:

        — None: Sets no options. (default)

        — ReadOnly: The properties of the Alias cannot be changed, except by using the Force parameter. You can use Remove-Item to delete the Alias.

        — Constant: The Alias cannot be deleted and its properties cannot be changed. Constant is available only when you are creating an Alias. You cannot change the option of an existing Alias to Constant.

        — Private: The Alias is available only within the scope specified by the Scope parameter. It is invisible in all other scopes.

        — AllScope: The Alias is copied to any new scopes that are created.

        To see the Options property of the Aliases, type “Get-Alias | Format-Table -property Name, Definition, Options -autosize”.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -PassThru [<SwitchParameter>]
        Returns an object representing the Alias. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Scope <string>
        Specifies the scope in which this Alias is valid. Valid values are “Global”, “Local”, or “Script”, or a number relative to the current scope (0 through the number of scopes, where 0 is the current scope and 1 is its parent). “Local” is the default. For more information, see about_scopes.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Value <string>
        Specifies the name of the cmdlet or command element that is being Aliased.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    None
        You cannot pipe input to this cmdlet.

OUTPUTS
    None or System.Management.Automation.AliasInfo
        When you use the PassThru parameter, Set-Alias generates a System.Management.Automation.AliasInfo object representing the Alias. Otherwise, this cmdlet does not generate any output.

NOTES

        An Alias is an alternate name or nickname for a cmdlet or command element. To run the cmdlet, you can use its full name or any valid Alias. For more information, see about_aliases.

        To create a new Alias, use Set-Alias or New-Alias. To delete an Alias, use Remove-Item.

        A cmdlet can have multiple Aliases, but an Alias can only be associated with one cmdlet at a time. If you use Set-Alias to associate the Alias with a different cmdlet, it is no longer associated with the original cmdlet.

        You can create an Alias for a cmdlet, but you cannot create an Alias for a command with parameters and values. For example, you can create an Alias for Set-Location, but you cannot create an Alias for “Set-Location C:\Windows\System32″. To create an Alias for a command, create a Function that includes the command, and then create an Alias to the Function.

        To save the Aliases from a session and use them in a different session, add the Set-Alias command to your Windows PowerShell profile. Profiles do not exist by default. To create a profile in the path stored in the $profile Variable, type “New-Item -type file -Force $profile”. To see the value of the $profile Variable, type “$profile”.

        You can also save your Aliases by using Export-Alias to copy the Aliases from the session to a file, and then use Import-Alias to add them to the Alias list for a new session.

        You can also refer to Set-Alias by its built-in Alias, “sal”. For more information, see about_aliases.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Set-Alias -Name list -Value Get-ChildItem

    Description
    ———–
    This command creates the Alias “list” for the Get-ChildItem cmdlet. After you create the Alias, you can use “list” in place of “Get-ChildItem” at the command line and in scripts.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Set-Alias list Get-Location

    Description
    ———–
    This command associates the Alias “list” with the Get-Location cmdlet. If “list” is an Alias for another cmdlet, this command changes its association so that it now is the Alias only for Get-Location.

    This command uses the same format as the command in the previous example, but it omits the optional parameter names, -Name and -Value. When you omit parameter names, the values of those parameters must appear in the specified order in the command. In this case, the value of -Name (“list”) must be the first parameter and the value of -Value (“Get-Location“) must be the second parameter.

    ————————– EXAMPLE 3 ————————–

    C:\PS>Set-Alias scrub Remove-Item -Option readonly -PassThru | Format-List

    Description
    ———–
    This command associates the Alias “scrub” with the Remove-Item cmdlet. It uses the “ReadOnly” option to prevent the Alias from being deleted or assigned to another cmdlet.

    The PassThru parameter directs Windows PowerShell to pass an object that represents the new Alias through the pipeline to the Format-List cmdlet. If the PassThru parameter were omitted, there would be no output from this cmdlet to display (in a list or otherwise).

    ————————– EXAMPLE 4 ————————–

    C:\PS>Set-Alias np c:\windows\notepad.exe

    Description
    ———–
    This command associates the Alias, “np”, with the executable file for Notepad. After the command completes, to open Notepad from the Windows PowerShell command line, just type “np”.

    This example demonstrates that you can create Aliases for executable files and elements other than cmdlets.

    To make the command more generic, you can use the “Windir” Environment Variable (${env:windir}) to represent the C\Windows directory. The generic version of the command is “Set-Alias np ${env:windir}\notepad.exe”.

    ————————– EXAMPLE 5 ————————–

    C:\PS>function CD32 {Set-Location c:\windows\system32}

    C:\PS>Set-Alias go cd32

    Description
    ———–
    These commands show how to assign an Alias to a command with parameters, or even to a pipeline of many commands.

    You can create an Alias for a cmdlet, but you cannot create an Alias for a command that consists of a cmdlet and its parameters. However, if you place the command in a Function or a script, then you can create a useful Function or script name and you can create one or more Aliases for the Function or script.

    In this example, the user wants to create an Alias for the command “Set-Location c:\windows\system32″, where “Set-Location” is a cmdlet and “C:\Windows\System32” is the value of the Path parameter.

    To do this, the first command creates a Function called “CD32” that contains the Set-Location command.

    The second command creates the Alias “go” for the CD32 Function. Then, to run the Set-Location command, the user can type either “CD32” or “go”.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113390
    Get-Alias
    New-Alias
    Export-Alias
    Import-Alias

AuthenticodeSignature, cmdlet, Set

Set-AuthenticodeSignature

NAME
    Set-AuthenticodeSignature

SYNOPSIS
    Adds an Authenticode signature to a Windows PowerShell script or other file.

SYNTAX
    Set-AuthenticodeSignature [-FilePath] <string[]> [-Certificate] <X509Certificate2> [-Force] [-HashAlgorithm <string>] [-IncludeChain <string>] [-TimestampServer <string>] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Set-AuthenticodeSignature cmdlet adds an Authenticode signature to any file that supports Subject Interface Package (SIP).

    In a Windows PowerShell script file, the signature takes the form of a block of text that indicates the end of the instructions that are executed in the script. If there is a signature in the file when this cmdlet runs, that signature is removed.

PARAMETERS
    -Certificate <X509Certificate2>
        Specifies the Certificate that will be used to sign the script or file. Enter a Variable that stores an object representing the Certificate or an expression that gets the Certificate.

        To find a Certificate, use Get-PfxCertificate or use the Get-ChildItem cmdlet in the Certificate (Cert:) drive. If the Certificate is not valid or does not have code-signing authority, the command fails.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -FilePath <string[]>
        Specifies the path to a file that is being signed.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Allows the cmdlet to append a signature to a read-only file. Even using the Force parameter, the cmdlet cannot override security restrictions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -HashAlgorithm <string>
        Specifies the hashing algorithm that Windows uses to compute the digital signature for the file. The default is SHA1, which is the Windows default hashing algorithm.

        Files that are signed with a different hashing algorithm might not be recognized on other systems.

        Required?                    false
        Position?                    named
        Default value                SHA1
        Accept pipeline input?     false
        Accept wildcard characters? false

    -IncludeChain <string>
        Determines which Certificates in the Certificate trust chain are included in the digital signature. “NotRoot” is the default.

        Valid values are:

        — Signer: Includes only the signer’s Certificate.

        — NotRoot: Includes all of the Certificates in the Certificate chain, except for the root authority.

        –All: Includes all the Certificates in the Certificate chain.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -TimestampServer <string>
        Uses the specified time stamp server to add a time stamp to the signature. Type the URL of the time stamp server as a string.

        The time stamp represents the exact time that the Certificate was added to the file. A time stamp prevents the script from failing if the Certificate expires because users and programs can verify that the Certificate was valid at the time of signing.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.String
        You can pipe a string that contains the file path to Set-AuthenticodeSignature.

OUTPUTS
    System.Management.Automation.Signature

NOTES

    ————————– EXAMPLE 1 ————————–

    C:\PS>$cert=Get-ChildItem -Path cert:\CurrentUser\my -CodeSigningCert

    C:\PS>Set-AuthenticodeSignature -FilePath PsTestInternet2.ps1 -Certificate $cert

    Description
    ———–
    These commands retrieve a code-signing Certificate from the Windows PowerShell Certificate provider and use it to sign a Windows PowerShell script.

    The first command uses the Get-ChildItem cmdlet and the Windows PowerShell Certificate provider to get the Certificates in the Cert:\CurrentUser\My subdirectory of the Certificate store. (The Cert: drive is the drive exposed by the Certificate provider.) The CodeSigningCert parameter, which is supported only by the Certificate provider, limits the Certificates retrieved to those with code-signing authority. The command stores the result in the $cert Variable.

    The second command uses the Set-AuthenticodeSignature cmdlet to sign the PSTestInternet2.ps1 script. It uses the FilePath parameter to specify the name of the script and the Certificate parameter to specify that the Certificate is stored in the $cert Variable.

    ————————– EXAMPLE 2 ————————–

    C:\PS>$cert = Get-PfxCertificate C:\Test\Mysign.pfx

    C:\PS>Set-AuthenticodeSignature -FilePath ServerProps.ps1 -Cert $cert

    Description
    ———–
    These commands use the Get-PfxCertificate cmdlet to find a code signing Certificate. Then, they use it to sign a Windows PowerShell script.

    The first command uses the Get-PfxCertificate cmdlet to find the C:\Test\MySign.pfx Certificate and store it in the $cert Variable.

    The second command uses Set-AuthenticodeSignature to sign the script. The FilePath parameter of Set-AuthenticodeSignature specifies the path to the script file being signed and the Cert parameter passes the $cert Variable containing the Certificate to Set-AuthenticodeSignature.

    If the Certificate file is password protected, Windows PowerShell prompts you for the password.

    ————————– EXAMPLE 3 ————————–

    C:\PS>Set-AuthenticodeSignature -FilePath c:\scripts\Remodel.ps1 -Certificate $cert -IncludeChain All -TimestampServer “http://timestamp.fabrikam.com/scripts/timstamper.dll”

    Description
    ———–
    This command adds a digital signature that includes the root authority in the trust chain, and it is signed by a third-party timestamp server.

    The command uses the FilePath parameter to specify the script being signed and the Certificate parameter to specify the Certificate that is saved in the $cert Variable. It uses the IncludeChain parameter to include all of the signatures in the trust chain (including the root authority). It also uses the TimeStampServer parameter to add a timestamp to the signature. This prevents the script from failing when the Certificate expires.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113391
    about_Signing
    about_execution_policies
    Get-AuthenticodeSignature
    Get-PfxCertificate
    Get-ExecutionPolicy
    Set-ExecutionPolicy

cmdlet, Content, Set

Set-Content

NAME
    Set-Content

SYNOPSIS
    Writes or replaces the content in an item with new content.

SYNTAX
    Set-Content [-LiteralPath] <string[]> [-Value] <Object[]> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PassThru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

    Set-Content [-Path] <string[]> [-Value] <Object[]> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PassThru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

DESCRIPTION
    The Set-Content cmdlet is a string-processing cmdlet that writes or replaces the content in the specified item, such as a file. Whereas the Add-Content cmdlet appends content to a file, Set-Content replaces the existing content. You can type the content in the command or send content through the pipeline to Set-Content.

PARAMETERS
    -Credential <PSCredential>
        Specifies a user account that has permission to perform this action. The default is the current user.

        Type a user name, such as “User01” or “Domain01\User01”, or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password.

        This parameter is not supported by any providers installed with Windows PowerShell

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Exclude <string[]>
        Omits the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as “*.txt”. Wildcards are permitted.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Filter <string>
        Specifies a filter in the provider’s format or language. The value of this parameter qualifies the Path parameter. The syntax of the filter, including the use of wildcards, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when retrieving the objects, rather than having Windows PowerShell filter the objects after they are retrieved.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Allows the cmdlet to set the contents of a file, even if the file is read-only. Implementation varies from provider to provider. For more information, see about_providers. Even using the Force parameter, the cmdlet cannot override security restrictions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Include <string[]>
        Changes only the specified items. The value of this parameter qualifies the Path parameter. Enter a path element or pattern, such as “*.txt”. Wildcards are permitted.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -LiteralPath <string[]>
        Specifies the path to the item that will receive the content. Unlike Path, the value of LiteralPath is used exactly as it is typed. No characters are interpreted as wildcards. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell Windows PowerShell not to interpret any characters as escape sequences.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -PassThru [<SwitchParameter>]
        Returns an object representing the content. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Path <string[]>
        Specifies the path to the item that will receive the content. Wildcards are permitted.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Value <Object[]>
        Specifies the new content for the item.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -UseTransaction [<SwitchParameter>]
        Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_transactions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.Object
        You can pipe an object that contains the new value for the item to Set-Content.

OUTPUTS
    None or System.String
        When you use the Passthru parameter, Set-Content generates a System.String object representing the content. Otherwise, this cmdlet does not generate any output.

NOTES

        You can also refer to Set-Content by its built-in Alias, “sc”. For more information, see about_aliases.

        Set-Content is designed for string processing. If you pipe non-string objects to Set-Content, it converts the object to a string before writing it. To write objects to files, use Out-File.

        The Set-Content cmdlet is designed to work with the data exposed by any provider. To list the providers available in your session, type “Get-PSProvider“. For more information, see about_providers.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Set-Content -Path C:\Test1\test*.txt -Value “Hello, World”

    Description
    ———–
    This command replaces the contents of all files in the Test1 directory that have names beginning with “test” with “Hello, World”. This example shows how to specify content by typing it in the command.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Get-Date | Set-Content C:\Test1\date.csv

    Description
    ———–
    This command creates a comma-separated Variable-length (csv) file that contains only the current date and time. It uses the Get-Date cmdlet to get the current system date and time. The pipeline operator passes the result to Set-Content, which creates the file and writes the content.

    If the Test1 directory does not exist, the command fails, but if the file does not exist, the command will create it.

    ————————– EXAMPLE 3 ————————–

    C:\PS>(Get-Content Notice.txt) | ForEach-Object {$_ -replace “Warning”, “Caution”} | Set-Content Notice.txt

    Description
    ———–
    This command replaces all instances of “Warning” with “Caution” in the Notice.txt file.

    It uses the Get-Content cmdlet to get the content of Notice.txt. The pipeline operator sends the results to the ForEach-Object cmdlet, which applies the expression to each line of content in Get-Content. The expression uses the “$_” symbol to refer to the current item and the Replace parameter to specify the text to be replaced.

    Another pipeline operator sends the changed content to Set-Content which replaces the text in Notice.txt with the new content.

    The parentheses around the Get-Content command ensure that the Get operation is complete before the Set operation begins. Without them, the command will fail because the two Functions will be trying to access the same file.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113392
    about_providers
    Add-Content
    Get-Content
    Clear-Content

cmdlet, Date, Set

Set-Date

NAME
    Set-Date

SYNOPSIS
    Changes the system time on the computer to a time that you specify.

SYNTAX
    Set-Date [-Adjust] <TimeSpan> [-DisplayHint {Date | Time | DateTime}] [-Confirm] [-WhatIf] [<CommonParameters>]

    Set-Date [-Date] <DateTime> [-DisplayHint {Date | Time | DateTime}] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Set-Date cmdlet changes the system date and time on the computer to a date and time that you specify. You can specify a new date and/or time by typing a string or by passing a DateTime or TimeSpan object to Set-Date. To specify a new date or time, use the Date parameter. To specify a change interval, use the Adjust parameter.

PARAMETERS
    -Adjust <TimeSpan>
        Adds or subtracts the specified value from the current date and time. You can type an adjustment in standard date and time format for your locale or use the Adjust parameter to pass a TimeSpan object from New-TimeSpan to Set-Date.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Date <DateTime>
        Changes the date and time to the specified values. You can type a new date in the short date format and a time in the standard time format for your locale. Or, you can pass a Date-Time object from Get-Date.

        If you specify a date, but not a time, Set-Date changes the time to midnight on the specified date. If you specify only a time, it does not change the date.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -DisplayHint <DisplayHintType>
        Determines which elements of the date and time are displayed.

        Valid values are:

        — date: displays only the date
        — time: displays only the time
        — datetime: displays the date and time

        This parameter affects only the display. It does not affect the DateTime object that Get-Date retrieves.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.DateTime
        You can pipe a date to Set-Date.

OUTPUTS
    System.DateTime
        Set-Date returns an object that represents the date that it set.

NOTES

        Use this cmdlet cautiously. Changing the date and time on the computer. The change might prevent the computer from receiving system-wide events and updates that are triggered by a date or time. Use the -WhatIf and -Confirm parameters to avoid errors.

        You can use standard .NET methods with the DateTime and TimeSpan objects used with Set-Date, such as AddDays, AddMonths and FromFileTime. For more information, see “DateTime Methods” and “TimeSpan Methods.”

    ————————– EXAMPLE 1 ————————–

    C:\PS>Set-Date -Date (Get-Date).AddDays(3)

    Description
    ———–
    This command adds three days to the current system date. It does not affect the time. The command uses the Date parameter to specify the date. It uses the Get-Date cmdlet to get the current date and time and applies the AddDays .NET method for DateTime objects with a value of 3 (days).

    ————————– EXAMPLE 2 ————————–

    C:\PS>Set-Date -adjust -0:10:0 -DisplayHint time

    Description
    ———–
    This command sets the current system time back by 10 minutes. It uses the Adjust parameter to specify an interval of change and the time change (minus ten minutes) in standard time format for the locale. The DisplayHint parameter tells Windows PowerShell to display only the time, but it does not affect the DateTime object that Set-Date returns.

    ————————– EXAMPLE 3 ————————–

    C:\PS>$t = Get-Date

    C:\PS>Set-Date -Date $t

    Description
    ———–
    These commands change the system date and time on the computer to the date and time saved in the Variable $t. The first command gets the date and stores it in $t. The second command uses the Date parameter to pass the DateTime object in $t to the Set-Date cmdlet.

    ————————– EXAMPLE 4 ————————–

    C:\PS>$90mins = New-TimeSpan -minutes 90

    C:\PS>Set-Date -adjust $90mins

    Description
    ———–
    These commands advance the system time on the local computer by 90 minutes. The first command uses the New-TimeSpan cmdlet to create a TimeSpan object with a 90-minute interval, and then it saves the TimeSpan object in the $90mins Variable. The second command uses the Adjust parameter of Set-Date to adjust the date by the value of the TimeSpan object in the $90mins Variable.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113393
    Get-Date
    New-TimeSpan

cmdlet, Item, Rename

Rename-Item

NAME
    Rename-Item

SYNOPSIS
    Renames an item in a Windows PowerShell provider namespace.

SYNTAX
    Rename-Item [-Path] <string> [-NewName] <string> [-Credential <PSCredential>] [-Force] [-PassThru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

DESCRIPTION
    The Rename-Item cmdlet changes the name of a specified item. This cmdlet does not affect the content of the item being renamed.

    You cannot use Rename-Item to move an item, such as by specifying a path along with the new name. To move and rename an item, use the Move-Item cmdlet.

PARAMETERS
    -Credential <PSCredential>
        Specifies a user account that has permission to perform this action. The default is the current user.

        Type a user name, such as “User01” or “Domain01\User01”, or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password.

        This parameter is not supported by any providers installed with Windows PowerShell.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Allows the cmdlet to rename items that cannot otherwise be changed, such as hidden or read-only files or read-only Aliases or Variables. The cmdlet cannot change constant Aliases or Variables. Implementation varies from provider to provider. For more information, see about_providers. Even using the Force parameter, the cmdlet cannot override security restrictions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -NewName <string>
        Specifies the new name of the item. Enter only a name, not a path and name. If you enter a path that is different from the path that is specified in the Path parameter, Rename-Item generates an error. To rename and move an item, use the Move-Item cmdlet.

        You cannot use wildcard characters in the value of NewName. To specify a name for multiple files, use the Replace operator in a regular expression. For more information about the Replace operator, type “Get-Help about_Comparison_Operators“. For a demonstration, see the examples.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -PassThru [<SwitchParameter>]
        Passes an object representing the item to the pipeline. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Path <string>
        Specifies the path to the item to rename.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -UseTransaction [<SwitchParameter>]
        Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_transactions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.String
        You can pipe a string that contains a path to Rename-Item.

OUTPUTS
    None or an object representing the renamed item.
        When you use the Passthru parameter, Rename-Item generates an object representing the renamed item. Otherwise, this cmdlet does not generate any output.

NOTES

        The Rename-Item cmdlet is designed to work with the data exposed by any provider. To list the providers available in your session, type “Get-PSProvider“. For more information, see about_providers.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Rename-Item -Path c:\logfiles\daily_file.txt -NewName monday_file.txt

    Description
    ———–
    This command renames the file daily_file.txt to monday_file.txt.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Rename-Item -Path project.txt -NewName d:\archive\old-project.txt

    Rename-Item : Cannot rename because the target specified represents a path or device name.
    At line:1 char:12
    + Rename-Item <<<< -Path project.txt -NewName d:\archive\old-project.txt
        + CategoryInfo         : InvalidArgument: (:) [Rename-Item], PSArgumentException
        + FullyQualifiedErrorId : Argument,Microsoft.PowerShell.Commands.RenameItemCommand

    C:\PS> Move-Item -Path project.txt -destination d:\archive\old-project.txt
    # Command succeeds

    Description
    ———–
    This example shows that you cannot use the Rename-Item cmdlet to both rename and move an item. Specifically, you cannot supply a path for the value of the NewName parameter, unless the path is identical to the path specified in the Path parameter. Otherwise, only a new name is permitted.

    The first command uses the Rename-Item cmdlet to rename the project.txt file in the current directory to old-project.txt in the D:\Archive directory. The result is the error shown in the output.

    The second command shows the correct way to move and rename a file by using the Move-Item cmdlet. The Move-Item cmdlet lets you specify both a new path and a new name in the value of its Destination parameter.

    ————————– EXAMPLE 3 ————————–

    C:\PS>Rename-Item HKLM:\Software\MyCompany\Advertising -NewName Marketing

    Description
    ———–
    This command uses the Rename-Item cmdlet to rename a Registry key from Advertising to Marketing. When the command is complete, the key is renamed, but the Registry entries in the key are unchanged.

    ————————– EXAMPLE 4 ————————–

    C:\PS>Get-ChildItem *.txt | Rename-Item -NewName { $_.name -replace ‘\.txt’,’.log’ }

    Description
    ———–
    This example shows how to use the Replace operator to rename multiple files, even though the NewName parameter does not accept wildcard characters.

    This command renames all of the .txt files in the current directory to .log.

    The command uses a Get-ChildItem cmdlet to get all of the files in the current directory that have a .txt file name extension. Then, it uses the pipeline operator (|) to send the resulting files to the Rename-Item cmdlet.

    In the Rename-Item command, the value of the NewName parameter is a script block that is executed before the value is submitted to the NewName parameter.

    In the script block, the $_ automatic Variable represents each file object as it comes to the command through the pipeline. The command uses the dot format (.) to get the Name property of each file object. The Replace operator replaces the “.txt” file name extension of each file with “.log”.

    Because the Replace operator works with regular expressions, the dot preceding “txt” is interpreted to match any character. To ensure that it matches only a dot (.), it is escaped with a backslash character (\). The backslash character is not required in “.log” because it is a string, not a regular expression.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113382
    about_providers
    Clear-Item
    Invoke-Item
    Move-Item
    Rename-ItemProperty
    Set-Item
    New-Item
    Remove-Item
    Get-Item
    Copy-Item

cmdlet, ItemProperty, Rename

Rename-ItemProperty

NAME
    Rename-ItemProperty

SYNOPSIS
    Renames a property of an item.

SYNTAX
    Rename-ItemProperty [-LiteralPath] <string> [-Name] <string> [-NewName] <string> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PassThru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

    Rename-ItemProperty [-Path] <string> [-Name] <string> [-NewName] <string> [-Credential <PSCredential>] [-Exclude <string[]>] [-Filter <string>] [-Force] [-Include <string[]>] [-PassThru] [-Confirm] [-WhatIf] [-UseTransaction] [<CommonParameters>]

DESCRIPTION
    The Rename-ItemProperty cmdlet changes the name of a specified item property. The value of the property is not changed. For example, you can use Rename-ItemProperty to change the name of a Registry entry.

PARAMETERS
    -Credential <PSCredential>
        Specifies a user account that has permission to perform this action. The default is the current user.

        Type a user name, such as “User01” or “Domain01\User01”, or enter a PSCredential object, such as one generated by the Get-Credential cmdlet. If you type a user name, you will be prompted for a password.

        This parameter is not supported by any providers installed with Windows PowerShell.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Exclude <string[]>
        Omits the specified items. Wildcards are permitted.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Filter <string>
        Specifies a filter in the provider’s format or language. The value of this parameter qualifies the Path parameter. The syntax of the filter, including the use of wildcards, depends on the provider. Filters are more efficient than other parameters, because the provider applies them when retrieving the objects rather than having Windows PowerShell filter the objects after they are retrieved.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Allows the cmdlet to rename a property of an object that cannot otherwise be accessed by the user. Implementation varies from provider to provider. For more information, see about_providers.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Include <string[]>
        Specifies only those items upon which the cmdlet will act, excluding all others.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -LiteralPath <string>
        Specifies a path to the item property. The value of LiteralPath is used exactly as it is typed. No characters are interpreted as wildcards. If the path includes escape characters, enclose it in single quotation marks. Single quotation marks tell Windows PowerShell not to interpret any characters as escape sequences.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Name <string>
        Specifies the current name of the property to be renamed.

        Required?                    true
        Position?                    2
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -NewName <string>
        Specifies the new name for the property.

        Required?                    true
        Position?                    3
        Default value
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -PassThru [<SwitchParameter>]
        Returns an object representing the item property. By default, this cmdlet does not generate any output.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Path <string>
        Specifies the path to the item to be renamed.

        Required?                    true
        Position?                    1
        Default value
        Accept pipeline input?     true (ByValue, ByPropertyName)
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -UseTransaction [<SwitchParameter>]
        Includes the command in the active transaction. This parameter is valid only when a transaction is in progress. For more information, see about_transactions.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    System.String
        You can pipe a string that contains a path (but not a literal path) to Rename-ItemProperty.

OUTPUTS
    None or System.Management.Automation.PSCustomObject
        When you use the PassThru parameter, Rename-ItemProperty generates a PSCustomObject representing the renamed item property. Otherwise, this cmdlet does not generate any output.

NOTES

        The Remove-ItemProperty cmdlet is designed to work with the data exposed by any provider. To list the providers available in your session, type “Get-PSProvider“. For more information, see about_providers.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Rename-Itemproperty -Path HKLM:\Software\SmpApplication -Name config -NewName oldconfig

    Description
    ———–
    This command renames the config Registry entry contained in the HKEY_LOCAL_MACHINE\Software\SmpApplication key to oldconfig.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=113383
    about_providers
    Rename-Item
    Clear-ItemProperty
    Copy-ItemProperty
    Get-ItemProperty
    Move-ItemProperty
    New-ItemProperty
    Remove-ItemProperty
    Set-ItemProperty

cmdlet, ComputerMachinePassword, Reset

Reset-ComputerMachinePassword

NAME
    Reset-ComputerMachinePassword

SYNOPSIS
    Resets the machine account password for the computer.

SYNTAX
    Reset-ComputerMachinePassword [-Server <string>] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Reset-ComputerMachinePassword cmdlet changes the machine account password that the computers use to authenticate to the domain controllers in the domain. You can use it to reset the password of the local computer.

PARAMETERS
    -Server <string>
        Specifies the name of a domain controller to use when setting the machine account password.

        This parameter is optional. If you omit this parameter, a domain controller is chosen to service the command.

        Required?                    false
        Position?                    named
        Default value                None
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    None
        You cannot pipe input to this cmdlet.

OUTPUTS
    None
        This cmdlet does not generate any output.

NOTES

    ————————– EXAMPLE 1 ————————–

    C:\PS>Reset-ComputerMachinePassword

    Description
    ———–
    This command resets the machine password for the local computer. The command runs with the credentials of the current user.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Reset-ComputerMachinePassword -Server DC01

    Description
    ———–
    This command resets the machine password of the local computer using the DC01 domain controller.

    ————————– EXAMPLE 3 ————————–

    C:\PS>Invoke-Command -computername Server01 -scriptblock {Reset-ComputerMachinePassword}

    Description
    ———–
    This command uses the Invoke-Command cmdlet to run a Reset-ComputerMachinePassword command on the Server01 remote computer.

    For more information about remote commands in Windows PowerShell, see about_remote and Invoke-Command.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=135252

cmdlet, Computer, Restart

Restart-Computer

NAME
    Restart-Computer

SYNOPSIS
    Restarts (“reboots”) the operating system on local and remote computers.

SYNTAX
    Restart-Computer [[-ComputerName] <string[]>] [[-Credential] <PSCredential>] [-AsJob] [-Authentication {Default | None | Connect | Call | Packet | PacketIntegrity | PacketPrivacy | Unchanged}] [-Force] [-Impersonation {Default | Anonymous | Identify | Impersonate | Delegate}] [-ThrottleLimit <int>] [-Confirm] [-WhatIf] [<CommonParameters>]

DESCRIPTION
    The Restart-Computer cmdlet restarts the operating system on the local and remote computers.

    You can use the parameters of Restart-Computer to run the restart operations as a background job, to specify the authentication levels and alternate credentials, to limit the operations that run concurrently, and to force an immediate restart.

    This cmdlet does not require Windows PowerShell remoting unless you use the AsJob parameter.

PARAMETERS
    -AsJob [<SwitchParameter>]
        Runs the command as a background job.

        Note: To use this parameter, the local and remote computers must be configured for remoting and, on Windows Vista and later versions of Windows, you must open Windows PowerShell with the “Run as administrator” option. For more information, see about_remote_requirements.

        When you use the AsJob parameter, the command immediately returns an object that represents the background job. You can continue to work in the session while the job completes. The job is created on the local computer and the results from remote computers are automatically returned to the local computer. To manage the job, use the Job cmdlets. To get the job results, use the Receive-Job cmdlet.

        For more information about Windows PowerShell background jobs, see about_jobs and about_remote_Jobs.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Authentication <AuthenticationLevel>
        Specifies the authentication level that is used for the WMI connection. (Restart-Computer uses WMI.) The default value is Packet.

        Valid values are:

        Unchanged:     The authentication level is the same as the previous command.
        Default:         Windows Authentication
        None:            No COM authentication
        Connect:         Connect-level COM authentication
        Call:            Call-level COM authentication
        Packet:         Packet-level COM authentication.
        PacketIntegrity: Packet Integrity-level COM authentication
        PacketPrivacy: Packet Privacy-level COM authentication.

        Required?                    false
        Position?                    named
        Default value                4
        Accept pipeline input?     false
        Accept wildcard characters? false

    -ComputerName <string[]>
        Specifies one or more remote computers. The default is the local computer.

        Type the NETBIOS name, an IP address, or a fully qualified domain name of a remote computer. To specify the local computer, type the computer name, a dot (.), or “localhost”.

        This parameter does not rely on Windows PowerShell remoting. You can use the ComputerName parameter even if your computer is not configured to run remote commands.

        Required?                    false
        Position?                    1
        Default value                .
        Accept pipeline input?     true (ByPropertyName)
        Accept wildcard characters? false

    -Credential <PSCredential>
        Specifies a user account that has permission to perform this action. The default is the current user.

        Type a user name, such as “User01” or “Domain01\User01”, or enter a PSCredential object, such as one from the Get-Credential cmdlet.

        Required?                    false
        Position?                    2
        Default value                Current user
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Force [<SwitchParameter>]
        Forces an immediate restart of the computers.

        Required?                    false
        Position?                    named
        Default value                False
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Impersonation <ImpersonationLevel>
        Specifies the impersonation level to use when calling WMI. (Restart-Computer uses WMI.) The default value is “Impersonate”.

        Valid values are:

        Default:     Default impersonation.
        Anonymous:    Hides the identity of the caller.
        Identify:     Allows objects to query the credentials of the caller.
        Impersonate: Allows objects to use the credentials of the caller.

        Required?                    false
        Position?                    named
        Default value                Impersonate
        Accept pipeline input?     false
        Accept wildcard characters? false

    -ThrottleLimit <int>
        Specifies the maximum number of concurrent connections that can be established to run this command. If you omit this parameter or enter a value of 0, the default value, 32, is used.

        The throttle limit applies only to the current command, not to the session or to the computer.

        Required?                    false
        Position?                    named
        Default value                32
        Accept pipeline input?     false
        Accept wildcard characters? false

    -Confirm [<SwitchParameter>]
        Prompts you for confirmation before executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    -WhatIf [<SwitchParameter>]
        Describes what would happen if you executed the command without actually executing the command.

        Required?                    false
        Position?                    named
        Default value
        Accept pipeline input?     false
        Accept wildcard characters? false

    <CommonParameters>
        This cmdlet supports the common parameters: Verbose, Debug,
        ErrorAction, ErrorVariable, WarningAction, WarningVariable,
        OutBuffer and OutVariable. For more information, type,
        “Get-Help about_CommonParameters“.

INPUTS
    None
        You cannot pipe input to this cmdlet.

OUTPUTS
    None or System.Management.Automation.RemotingJob
        When you use the AsJob parameter, the cmdlet returns a job object. Otherwise, it does not generate any output.

NOTES

        This cmdlet uses the Win32Shutdown method of the WMI WIN32_OperatingSystem class.

    ————————– EXAMPLE 1 ————————–

    C:\PS>Restart-Computer

    Description
    ———–
    This command restarts the local computer.

    ————————– EXAMPLE 2 ————————–

    C:\PS>Restart-Computer -ComputerName Server01, Server02, localhost

    Description
    ———–
    This command restarts two remote computers, Server01 and Server02, and the local computer, identified as “localhost”.

    ————————– EXAMPLE 3 ————————–

    C:\PS>$j = Restart-Computer -ComputerName Server01, Server02 -AsJob

    C:\PS> $results = $j | Receive-Job

    C:\PS> $results

    Description
    ———–
    These commands run a Restart-Computer command as a background job on two remote computers, and then get the results.

    The first command uses the AsJob parameter to run the command as a background job. The command saves the resulting job object in the $j Variable.

    The second command uses a pipeline operator to send the job object in $j to the Receive-Job cmdlet, which gets the job results. The command saves the results in the $results Variable.

    The third command displays the result saved in the $results Variable.

    Because the AsJob parameter creates the job on the local computer and automatically returns the results to the local computer, you can run the Receive-Job command as a local command.

    ————————– EXAMPLE 4 ————————–

    C:\PS>Restart-Computer -comp Server01 -Impersonation anonymous -Authentication PacketIntegrity

    Description
    ———–
    This command restarts the Server01 remote computer. The command uses customized impersonation and authentication settings.

    ————————– EXAMPLE 5 ————————–

    C:\PS>$s = Get-Content domain01.txt

    C:\PS> $c = Get-Credential domain01\admin01

    C:\PS> Restart-Computer -ComputerName $s -Force -ThrottleLimit 10 -Credential $c

    Description
    ———–
    These commands force an immediate restart of all of the computers in Domain01.

    The first command gets a list of computers in the domain and saves it in the $s Variable.

    The second command gets the credentials of a domain administrator and saves them in the $c Variable.

    The third command restarts the computers. It uses the ComputerName parameter to submit the list of computers in the $s Variable, the Force parameter to force an immediate restart, and the Credential parameter to submit the credentials saved in the $c Variable. It also uses the ThrottleLimit parameter to limit the command to 10 concurrent connections.

RELATED LINKS
    Online version: http://go.microsoft.com/fwlink/?LinkID=135253
    Add-Computer
    Checkpoint-Computer
    Remove-Computer
    Restore-Computer
    Stop-Computer
    Test-Connection