toggle_app — Toggle the visibility of any app on Mac OS X — Use with Quicksilver or something to toggle with shortcut keys

toggle_app

#!/usr/bin/env bash
# 
# toggle_app
#   Toggle the visibility of any app on Mac OS X
#   Use with Quicksilver or something to toggle with shortcut keys
# 
#   by: Thomas Aylott -- SubtleGradient.com
#   license: MIT
# 

if [ ! -n "$1" ]
then
  echo "Usage: `basename $0` AppName" 1>&2
  exit $E_BADARGS
fi

osascript\
    -e "if frontmost of the application \"$1\" then"\
    -e      "tell application \"System Events\" to set visible of process \"$1\" to false"\
    -e "else"\
    -e      "tell application \"$1\" to activate"\
    -e "end if"\
    || exit 1

exit 0