Powershell calling Powershell script

Question

How does the behaviour differ between & powershell .\other.ps1 and & .\other.ps1?

Edit: In particular, how do they differ if there's an error in other.ps1?

Joey · Accepted Answer · 2012-07-09 11:38:53Z

12

You get another PowerShell process in the former case and the script cannot read variables defined in your current session:

PS> $foo = 'bar'
PS> 'Write-Host $foo'|Set-Content x.ps1
PS> & powershell .\x.ps1

PS> & .\x.ps1
bar

answered Jul 9, 2012 at 11:38

Joey

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Emperor XLII Over a year ago

@ColonelPanic: Just like variables, exceptions will not cross process boundaries. Change the contents of x.ps1 to throw error, and compare the output of try { powershell.exe ./x.ps1; "success? $?; $LastExitCode" } catch { "caught $_; success? $?; $LastExitCode" } and try { ./x.ps1; "success? $?; $LastExitCode" } catch { "caught $_; success? $?; $LastExitCode" }.

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