What does the period '.' operator do in powershell?

Question

This is a weird one. Normally when I execute an external command from powershell I use the & operator like this:

& somecommand.exe -p so         


        

Answer 1

The dot is a call operator:

$a = "Get-ChildItem" 
. $a # (executes Get-ChildItem in the current scope)

In your case, however, I don't see what it does.