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#!/bin/sh
export VOERBOOS
RETVAL=0;export RETVAL
CNOW="$(cat /sys/class/power_supply/BAT0/charge_now)"
CFUL="$(cat /sys/class/power_supply/BAT0/charge_full)"
BATVAL="$(echo "scale=0;$CNOW*100/$CFUL"|bc -l)";export BATVAL
unset CNOW CFUL
BATSTATE="$(cat /sys/class/power_supply/BAT0/status)";export BATSTATE
BATFILE="/tmp/batman.sd";export BATFILE
export OPTCNT=0
batmobile() {
if [ "$BATVAL" -le 5 ];then
case "$BATSTATE" in
"Charging")
MSG="Battery charged at $BATVAL% with status \"$BATSTATE\", no shutdown."
[ ! -z "$VOERBOOS" ]&&[ "$VOERBOOS" -eq 1 ]&&echo "$MSG"
LMSG="Battery charged at $BATVAL% with status \"$BATSTATE\", no shutdown."
logger -p"info" -t"batman" "$LMSG"||RETVAL=$(("$RETVAL"+$?))
unset LMSG
[ -e "$BATFILE" ]&&/usr/sbin/shutdown -c >/dev/null 2>&1&&rm "$BATFILE"
SDCRV="$?"
case "$SDCRV" in
0) logger -p"info" -t"batman" "Shutdown cancelled.";;
*)
LMSG="batman" "$BATFILE exists but couldn't cancel shutdown!"
logger -p"warn" -t"$LMSG"
unset LMSG
RETVAL=$(("$RETVAL"+"$SDCRV"))
;;
esac
;;
*)
MSG="Battery charged at $BATVAL%, powering down."
[ ! -z "$VOERBOOS" ]&&[ "$VOERBOOS" -eq 1 ]&&echo "$MSG"||true
logger -pwarn -t"batman" "$MSG";RETVAL=$((RETVAL+"$?"))
if [ ! -e "$BATFILE" ];then
SMSG="Battery low and discharging, powering down. (batman)"
/usr/sbin/shutdown -P +2 "$SMSG"&&touch "$BATFILE"
RETVAL=$((RETVAL+"$?"))
fi
;;
esac
else
MSG="Battery charged at $BATVAL%, no shutdown."
[ ! -z "$VOERBOOS" ]&&[ "$VOERBOOS" -eq 1 ]&&echo "$MSG"||logger -p"info" -t"batman" "$MSG"
RETVAL=$((RETVAL+"$?"))
fi
}
batarang() {
MSG="$BATVAL% ($BATSTATE)";echo "$MSG";
}
while getopts :vnp SHOPT;do
case "$SHOPT" in
v)VOERBOOS=1;export VOERBOOS;OPTCNT=$((OPTCNT+1));;
p)batmobile;OPTCNT=$((OPTCNT+1));;
n)batarang;OPTCNT=$((OPTCNT+1));;
*)
echo "Not supported option: -""${OPTARG}" >&2
RETVAL=$((RETVAL+1));WRONGOPT=1 ;OPTCNT=$((OPTCNT+1))
;;
esac
done
shift $((OPTIND-1))
[ "$OPTCNT" -le 0 ]&&batarang
[ ! -z "$WRONGOPT" ]&&[ "$WRONGOPT" -eq 1 ]&&exit 1;true
exit "$RETVAL"
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