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about_Reserved_Words

Updated: August 9, 2012

Applies To: Windows PowerShell 2.0, Windows PowerShell 3.0

TOPIC
    about_Reserved_Words

SHORT DESCRIPTION
    Lists the reserved words that cannot be used as identifiers because they
    have a special meaning in Windows PowerShell.

LONG DESCRIPTION
    There are certain words that have special meaning in Windows PowerShell. 
    When these words appear without quotation marks, Windows PowerShell 
    attempts to apply their special meaning rather than treating them as 
    character strings. To use these words as parameter arguments in a command
    or script without invoking their special meaning, enclose the reserved 
    words in quotation marks.

    The following are the reserved words in Windows PowerShell:

        Begin              Exit               Process
        Break              Filter             Return
        Catch              Finally            Sequence
        Class              For                Switch
        Continue           ForEach            Throw
        Data               From               Trap
        Define             Function           Try
        Do                 If                 Until
        DynamicParam       In                 Using
        Else               InlineScript       Var
        ElseIf             Parallel           While
        End                Param              Workflow
                

    For more information about language statements, such as Foreach, If, 
    For, and While, type "Get-help", type the prefix "about_", and then type
    the name of the statement. For example, to get information about the 
    Foreach statement, type:

    Get-Help about_ForEach

    For information about the Filter statement or the Return statement 
    syntax, type:

        Get-Help about_Functions
    
   For information about other reserved words, type:

        Get-Help <Reserved_Word>

SEE ALSO
    about_Command_Syntax
    about_Escape_Characters
    about_Language_Keywords
    about_Parsing
    about_Quoting_Rules
    about_Script_Blocks
    about_Special_Characters



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