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#!/bin/sh
[ -x /sbin/iwconfig ] || exit $NA
wireless_powersave() {
case $1 in
on) iwparams="txpower auto power on" ;;
off) iwparams="txpower auto power off" ;;
*) exit $NA ;;
esac
cd /sys/class/net
for dev in *; do
[ -w "${dev}/wireless" ] || continue
/sbin/iwconfig $dev $iwparams
done
}
case $1 in
true) wireless_powersave on ;;
false) wireless_powersave off ;;
*) exit $NA ;;
esac
exit 0
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