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powershellfile-type

What are the different PowerShell file types?


If I try to save a file in ISE, the default extension is Powershell Files with parenthesis (*.ps1, *.psm1, *.psd1, *.ps1xml, *.pssc, *.psrc, *.cdxml) and with descriptions

Powershell Scripts (*.ps1)
Powershell Modules (*.psm1)
Powershell Data Files (*.psd1)
Powershell Session Configuration Files (*.pssc)
Powershell Role Capability Files (*.psrc)
Powershell Xml Files (*.psxml, *.cdxml)

What do each of these do?


Solution

  • Examples:

    Example psd1:

    @{
    
    RootModule = 'ExampleModule.psm1'
    ModuleVersion = '0.0.1'
    GUID = '1234abcd-1234-abcd-xxxx-000000000000'
    Author = 'User01'
    CompanyName = 'Unknown'
    Copyright = '(c) User01. All rights reserved.'
    Description = 'Example module'
    

    Example types.ps1xml:

    <Type>
      <Name>System.Object[]</Name>
      <Members>
        <AliasProperty>
          <Name>Test</Name>
          <ReferencedMemberName>
            Length
          </ReferencedMemberName>
        </AliasProperty>
      </Members>
    </Type>
    

    Adds new member Count to System.Arrays with member type AliasProperty:

    gm -InputObject @(1,2,3,4)| ?{$_.Name -eq "test"}
    
    
       TypeName: System.Object[]
    
    Name       MemberType    Definition
    ----       ----------    ----------
    Test       AliasProperty Test = Length
    

    Example psrc:

    New-PSRoleCapabilityFile `
        -Path ".\Test.psrc" `
        -Author "TestUser" `
        -CompanyName "Test Company" `
        -Description "Description" `
        -ModulesToImport "Microsoft.PowerShell.Core"
    

    Creates Test.psrc with parameters
    Test.psrc content:

    @{
    
    # ID used to uniquely identify this document
    GUID = '4fb9608e-474c-44c3-a752-ea1d9b27dcb0'
    
    # Author of this document
    Author = 'TestUser'
    
    # Description of the functionality provided by these settings
    Description = 'Description'
    
    # Company associated with this document
    CompanyName = 'Test Company'
    
    # Copyright statement for this document
    Copyright = '(c) 2020 TestUser. All rights reserved.'
    
    # Modules to import when applied to a session
    ModulesToImport = 'Microsoft.PowerShell.Core'
    
    # Aliases to make visible when applied to a session
    # VisibleAliases = 'Item1', 'Item2'
    
    # Cmdlets to make visible when applied to a session
    # VisibleCmdlets = 'Invoke-Cmdlet1', @{ Name = 'Invoke-Cmdlet2'; Parameters = @{ Name = 'Parameter1'; ValidateSet = 'Item1', 'Item2' }, @{ Name = 'Parameter2'; ValidatePattern = 'L*' } }
    
    # Functions to make visible when applied to a session
    # VisibleFunctions = 'Invoke-Function1', @{ Name = 'Invoke-Function2'; Parameters = @{ Name = 'Parameter1'; ValidateSet = 'Item1', 'Item2' }, @{ Name = 'Parameter2'; ValidatePattern = 'L*' } }
    
    # External commands (scripts and applications) to make visible when applied to a session
    # VisibleExternalCommands = 'Item1', 'Item2'
    
    # Providers to make visible when applied to a session
    # VisibleProviders = 'Item1', 'Item2'
    
    # Scripts to run when applied to a session
    # ScriptsToProcess = 'C:\ConfigData\InitScript1.ps1', 'C:\ConfigData\InitScript2.ps1'
    
    # Aliases to be defined when applied to a session
    # AliasDefinitions = @{ Name = 'Alias1'; Value = 'Invoke-Alias1'}, @{ Name = 'Alias2'; Value = 'Invoke-Alias2'}
    
    # Functions to define when applied to a session
    # FunctionDefinitions = @{ Name = 'MyFunction'; ScriptBlock = { param($MyInput) $MyInput } }
    
    # Variables to define when applied to a session
    # VariableDefinitions = @{ Name = 'Variable1'; Value = { 'Dynamic' + 'InitialValue' } }, @{ Name = 'Variable2'; Value = 'StaticInitialValue' }
    
    # Environment variables to define when applied to a session
    # EnvironmentVariables = @{ Variable1 = 'Value1'; Variable2 = 'Value2' }
    
    
    # Format files (.ps1xml) to load when applied to a session
    # FormatsToProcess = 'C:\ConfigData\MyFormats.ps1xml', 'C:\ConfigData\OtherFormats.ps1xml'
    
    # Assemblies to load when applied to a session
    # AssembliesToLoad = 'System.Web', 'System.OtherAssembly, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
    
    }
    

    Example pssc

    New-PSSessionConfigurationFile -RoleDefinitions
    @{ 'User' = @{ RoleCapabilities = 'Maintenance' }}
    -Path .\Maintenance.pssc
    

    Creates Maintenance.pssc with content

    @{
    
    # Version number of the schema used for this document
    SchemaVersion = '2.0.0.0'
    
    # ID used to uniquely identify this document
    GUID = 'a4f7e8eb-f787-4f2c-bf0f-555db2ca2b05'
    
    # Author of this document
    Author = 'User'
    
    # Description of the functionality provided by these settings
    # Description = ''
    
    # Session type defaults to apply for this session configuration. Can be 'RestrictedRemoteServer' (recommended), 'Empty', or 'Default'
    SessionType = 'Default'
    
    # Directory to place session transcripts for this session configuration
    # TranscriptDirectory = 'C:\Transcripts\'
    
    # Whether to run this session configuration as the machine's (virtual) administrator account
    # RunAsVirtualAccount = $true
    
    # Scripts to run when applied to a session
    # ScriptsToProcess = 'C:\ConfigData\InitScript1.ps1', 'C:\ConfigData\InitScript2.ps1'
    
    # User roles (security groups), and the role capabilities that should be applied to them when applied to a session
    RoleDefinitions = @{
        'User' = @{
            'RoleCapabilities' = 'Maintenance' } }
    
    }
    

    Register file with

    Register-PSSessionConfiguration -Name Name -Path .\Maintenance.pssc
    

    Now PowerShell sessions started with Name use Maintenance.pssc. To start a PowerShell session with Name use

    New-PSSession -ConfigurationName Name