Convenience function for checking if you're in a screen and outputting the id of it if so.

whereami.sh

#!/bin/bash

 ############
 # whereami #
 ############
 # Req. -> screen
 # Convenience function for checking if you're in a screen and outputting the id of it if so.
 function whereami {
     if [[ $(echo $STY) ]]; then
         echo "You're in the screen: $STY"
     else
         echo "You're not in a screen."
     fi
 }