Question

I want call execution for a myScript1.ps1 script inside a second myScript2.ps1 script inside Powershell ISE.

The following code inside MyScript2.ps1, works fine from Powershell Administration, but doesn’t work inside PowerShell ISE:

#Call myScript1 from myScript2
invoke-expression -Command .\myScript1.ps1

I obtain the following error when I execute MyScript2.ps1 from PowerShell ISE:

The term ‘.\myScript1.ps1’ is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

Answer 1

In order run a script in the same directory.

In PowerShell 3.0 and later you can use the automatic variable $PSScriptRoot:

$PSScriptRoot/myScript1.ps1

In PowerShell 1.0 and 2.0 you should use this specific property:

& "$(Split-Path $MyInvocation.MyCommand.Path)/myScript1.ps1"

---

The reason you should use that and not anything else can be illustrated with this example script.

## ScriptTest.ps1
Write-Host "InvocationName:" $MyInvocation.InvocationName
Write-Host "Path:" $MyInvocation.MyCommand.Path

Here are some results.

PS C:\Users\JasonAr> .\ScriptTest.ps1
InvocationName: .\ScriptTest.ps1
Path: C:\Users\JasonAr\ScriptTest.ps1

PS C:\Users\JasonAr> . .\ScriptTest.ps1
InvocationName: .
Path: C:\Users\JasonAr\ScriptTest.ps1

PS C:\Users\JasonAr> & ".\ScriptTest.ps1"
InvocationName: &
Path: C:\Users\JasonAr\ScriptTest.ps1

In PowerShell 3.0 and later you can use the automatic variable $PSScriptRoot:

## ScriptTest.ps1
Write-Host "Script:" $PSCommandPath
Write-Host "Path:" $PSScriptRoot

PS C:\Users\jarcher> .\ScriptTest.ps1
Script: C:\Users\jarcher\ScriptTest.ps1
Path: C:\Users\jarcher