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PSReadLine: A Better Line Editing Experience for the PowerShell Console

Keith Hill's Blog

When Windows PowerShell 3.0 shipped, the team created an extensibility mechanism to allow a third party to “take over” the line editing experience.  That hook is a function called PSConsoleHostReadline that PowerShell will call – if it exists – to read a line of text from the user.  The simplicity of this interface belies the potential complexity of what it needs to do.  Users expect to be able to do more than just type a command, mistake free and press enter.  No, they want editing features like cursor left/right, backspace, delete, kill to end of line, multiline editing, etc.

Fortunately for the community, one of the PowerShell team members – Jason Shirk – has implemented a very nice replacement line editor that uses this hook. It is called PSReadLine and you can get it here on GitHub.  There are no releases on GitHub at this point in time but…

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