bash

$((1 + 1))

• ${?}: Returncode des letzten ausfgeführten Programms

template.bash

#!/bin/bash
#Usage:         scriptname and arguments/options
#Purpose:       short description
#Responsible:   name of author <email>
#Licence:       as far as possible GPL v2
 
#user-definable vars
 
#
#do not mess behind this line
#
 
#preset vars
 
#functions
 
#main part
 
#clean up