Petit script pour activer/désactiver le wifi sur le portable Acer TravelMate 370 : 

if [ $(id -u) != 0 ] ; then sudo "$0" "$@" ; fi
case $1 in
  on)  echo 1 > /proc/driver/acerhk/wirelessled ;;
  off) echo 0 > /proc/driver/acerhk/wirelessled ;;
  *)   echo "Syntax: $0 on|off" ;;
esac