PS
Powershell Tutorial Online

Tutorials

NAME
    Clear-History
    
SYNTAX
    Clear-History [[-Id] ] [[-Count] ] [-Newest] [-WhatIf] [-Confirm]  
    []
    
    Clear-History [[-Count] ] [-CommandLine ] [-Newest] [-WhatIf] 
    [-Confirm]  []
    

ALIASES
    clhy
    

REMARKS
    Get-Help cannot find the Help files for this cmdlet on this computer. It is 
    displaying only partial help.
        -- To download and install Help files for the module that includes this cmdlet, 
    use Update-Help.
        -- To view the Help topic for this cmdlet online, type: "Get-Help Clear-History 
    -Online" or 
           go to http://go.microsoft.com/fwlink/?LinkID=135199.