pandorafms/extras/generic_daemon_launcher

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#!/bin/sh
# **********************************************************************
# Generic Daemon launcher for Unix (AIX, HP-UX, SunOS, Linux)
# (c) 2008-2023 Pandora FMS
# (c) 2008-2009 Sancho Lerena <slerena@gmail.com>
# This code is licensed under GPL 2.0 license.
# **********************************************************************
PATH=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin
DAEMON="/home/slerena/code/pandora/trunk/extras/daemon_watchdog"
# This function replace pidof, not working in the same way in different linux distros
pidof_daemon () {
COLUMNS=300
OS_NAME=`uname -s`
if [ $OS_NAME = "HP-UX" ]
then
A_PID=`ps -ex | grep "$DAEMON" | grep -v grep | head -1 | awk '{ print $1 }'`
else
A_PID=`ps -Af | grep "$DAEMON" | grep -v grep | head -1 | awk '{ print $2 }'`
fi
echo $A_PID
}
if [ ! -f $DAEMON ]
then
echo "$DAEMON not found, please check setup. Exiting"
exit
fi
case "$1" in
start)
A_PID=`pidof_daemon`
if [ ! -z "$A_PID" ]
then
echo "$DAEMON is currently running on this machine with PID $A_PID"
echo "Cannot launch again. Aborting."
exit 1
fi
nohup $DAEMON 2> /dev/null > /dev/null &
sleep 2
rm nohup.out 2> /dev/null
A_PID=`pidof_daemon`
if [ -z "$A_PID" ]
then
echo "Cannot start $DAEMON. Exitting"
exit 1
else
echo "$DAEMON is now running with PID $A_PID"
fi
;;
stop)
A_PID=`pidof_daemon`
if [ -z "$A_PID" ]
then
echo "$DAEMON is not running, cannot stop it. Aborting now..."
exit 1
else
echo "Stopping $DAEMON"
kill $A_PID > /dev/null 2>&1
fi
;;
status)
A_PID=`pidof_daemon`
if [ -z "$A_PID" ]
then
echo "$DAEMON is not running."
else
echo "$DAEMON is running with PID $A_PID."
fi
exit 0
;;
force-reload|restart)
$0 stop
sleep 2
$0 start
;;
*)
echo "Uso: generic_daemon_launcher {start|stop|restart|status}"
exit 1
esac