If you want to execute a function from another PowerShell script file, you can “dot-source” the file.

The “.” is a special operator in PowerShell that can load another PowerShell script file en import all code in it.

Assume both PowerShell scripts are in the same folder, we can use the code in script1.ps1 in script2.ps1 in the following way:

PowerShell script1.ps1

function ReturnGivenText {

Param(

        [Parameter(Mandatory=$True)]

        [string]$text

    )

    return $text

}

PowerShell script2.ps1

$text = ReturnGivenText -text “Hello world”

write-host $text

This will output:

Hello world

Note: I use the PowerShell >3 global variable $PSScriptRoot, to make the relative path, absolute, so we can use the “.” operator.