PowerShell 2.0 - Running scripts for the command line call vs. from the ISE

Not an answer, just a note.

I searched for explanation of -file parameter. Most sources say only "Execute a script file.". At http://technet.microsoft.com/en-us/library/dd315276.aspx I read

Runs the specified script in the local scope ("dot-sourced"), so that the functionsand variables that the script creates are available in the current session. Enterthe script file path and any parameters.

After that I tried to call this:

powershell -command ". c:\temp\aa\script.ps1"powershell -file c:\temp\aa\script.ps1powershell -command "& c:\temp\aa\script.ps1"

Note that first two stop after Get-Foo, but the last one doesn't.

The problem I describe above is related to modules -- if you define Get-Foo inside script.ps1, all the 3 calls I described stop after call to Get-Foo.

Just try to define it inside the script.ps1 or dotsource the file with Get-Foo and check it. There is a chance it will work :)

Here is a concrete example of the behaviour I described.

MyModule.psm1

function Get-Foo{    Write-Error 'Failed'}

Script.ps1

$ErrorActionPreference = 'Stop'$currentFolder = (Split-Path $MyInvocation.MyCommand.Path)Import-Module $currentFolder\MyModule.psm1try{    Get-Foo     Write-Host "Success"}catch{    "Error occurred"} 

Running Script.ps1:

• From the ISE, or with the -File parameter

  will output "Error occurred" and stop

• From the command line without the -File parameter

  will output "Failed" followed by "Success" (i.e. not caught)