init script for apcupsd

Earlier I had blogged about running an APC UPS monitoring software in linux, called apcupsd. For those who wanted to run apcupsd (A daemon that monitors any APC UPSes connected to your system), you can use a script which I created for myself. Here it is. Create a file in /etc/init.d and name it apcupsd and copy the below script into it. I’ve created this for fedora 9.( Make sure you don’t have a apcupsd~ file created by your editor.) Once you’ve created the file, just execute a command such as ‘chkconfig –levels 12345 apcupsd on’ to enable the apcupsd services at all times and you should see apcupsd running automatically upon next boot!

#!/bin/bash
#
#	/etc/rc.d/init.d/apcupsd
#
# Starts the "apcupsd" daemon
#
# chkconfig: - 47 24
#
# description: Runs the apc ups daemon.
# processname: apcupsd

# Source function library.
. /etc/init.d/functions

# pull in sysconfig settings

RETVAL=0
prog="apcupsd"
APCUPSD=/sbin/apcupsd
LOCK_FILE=/var/lock/apcupsd

start() {
	# Check if apcupsd is already running
	echo -n $"Starting $prog: "
	$APCUPSD && success || failure
	RETVAL=$?
	[ "$RETVAL" = 0 ] && touch $LOCK_FILE
	echo
}

stop() {
	echo -n $"Stopping $prog: "
    if [ -n "`pidfileofproc $APCUPSD`" ] ; then
        killproc $APCUPSD
    else
        failure $"Stopping $prog"
    fi
    RETVAL=$?
    [ "$RETVAL" = 0 ] && rm -f $LOCK_FILE
    echo
}

restart() {
	stop
	start
}	

reload() {
	echo -n $"Reloading $prog: "
	if [ -n "`pidfileofproc $APCUPSD`" ]; then
		killproc $APCUPSD -HUP
	else
		failure $"Reloading $prog"
	fi
	RETVAL=$?
	echo
}	

case "$1" in
start)
	start
	;;
stop)
	stop
	;;
restart)
	stop
	start
	;;
reload)
	reload
	;;
condrestart)
	if [ -f  $LOCK_FILE ]; then
		if [ "$RETVAL" = 0 ]; then
			stop
			sleep 3
			start
		fi
	fi
	;;
status)
	status $APCUPSD
	;;
*)
	echo $"Usage: $0 {start|stop|restart|reload|condrestart|status}"
	RETVAL=3
esac
exit $RETVAL