Powershell script not recognizing my function

Question

I have a powershell script that parses a file and send an email if it detects a certain pattern. I have the email code setup inside a function, and it all works fine when I

Answer 1

Powershell processes in order (top-down) so the function definition needs to be before the function call:

function email($text){
    #email $text
}

#Do things | 
foreach{
    email($_)
}

It probably works fine in the ISE because you have the function definition in memory still from a prior run or test.