Back in the good old days of PowerShell 2.0, we often started our scripts with a line that referred the directory path where the script ran.
This is used e.g. to get location of a WSP package that was to be deployed to the farm. The PowerShell script looked like this.
1 $scriptPath = split-path -parent $MyInvocation.MyCommand.Definition
2 $scriptPath + "\mypackage.wsp"
3 #add and deploy package to farm
But in PowerShell 3.0, there is a new build-in variable for this. The “$PSScriptRoot” and now the PowerShell look like this
1 $PSScriptRoot + "\mypackage.wsp"
2 #add and deploy package to farm
This a not a big change to the script, but a line less is a win.
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