Thursday, December 30, 2010

Reinitializing your Powershell environment without closing and reopening

I’ve been running our builds with psake, and have found that I get errors if I try to run a build script twice in the same Powershell session.  I looked around a bit about how to reset your Powershell environment without closing and reopening a Powershell console window, but couldn’t find anything. 

Here’s what I came up with that works for me.

Remove-Variable * -ErrorAction SilentlyContinue; Remove-Module *; $error.Clear(); Clear-Host

And now, the short version:

rv * -ea SilentlyContinue; rmo *; $error.Clear(); cls

2 comments:

psychophrenes said...

Quick and concise solution.

However, that doesn't work in all cases. For example, constant variables are not removed when using this solution.
New-Variable ConstantVar -Option constant -value "This is a contant"
In that case, Remove-Variable * fails.

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