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|
#!/bin/sh
help ()
{
echo "Usage $0 command [options] application [application argument]"
echo "command:"
echo " start - start an application"
echo " stop - stop an application"
echo " restart - restart an application"
echo ""
echo "options: -d | -l <log file>"
echo " -d - start an application as a singleton daemon"
echo " -l <log file name> - redirect the standard output/error in the the file"
echo " note: Option -d and -l are exclusive to each other"
exit 1
}
killproc() { # kill the named process(es)
pid=`/bin/pidof $1`
[ "x$pid" != "x" ] && kill $pid
}
start ()
{
pid=`/bin/pidof $APP`
[ "x$pid" != "x" ] && return 0
if [ "x$DAEMON" != "x" ]; then
if [ "x$APPARG" != "x" ]; then
start-stop-daemon -S -b --oknodo -x $APP -- $APPARG
else
start-stop-daemon -S -b --oknodo -x $APP
fi
#wait for sometime for the backend app to bring up & daemonzie
ret=$?
if [ $ret -eq 0 ]; then
sleep 1
fi
return $ret
elif [ "x$LOGFILE" != "x" ]; then
$APP $APPARG $>${LOGFILE}
else
$APP $APPARG
fi
}
stop ()
{
if [ "x$DAEMON" != "x" ]; then
start-stop-daemon -K -x $APP
else
count=0
while [ -n "`/bin/pidof $APP`" -a $count -lt 10 ] ; do
killproc $APP >& /dev/null
sleep 1
RETVAL=$?
if [ $RETVAL != 0 -o -n "`/bin/pidof $APP`" ] ; then
sleep 3
fi
count=`expr $count + 1`
done
fi
}
restart ()
{
stop
sleep 1
start
}
#set PATH to include sbin dirs
export PATH="$PATH:/usr/local/sbin:/usr/sbin:/sbin"
#get command
case $1 in
start) CMD=$1; shift 1
;;
stop) CMD=$1; shift 1
;;
*) help
;;
esac
#get options
while [ $# -gt 0 ]; do
case $1 in
-d) DAEMON=true; shift 1
;;
-l) LOGFILE=$2; shift 2
;;
*) break
;;
esac
done
#get application
APP=$1
shift 1
#get app argument
APPARG="$@"
#validate options
if [ "x$DAEMON" != "x" -a "x$LOGFILE" != "x" ]; then
help
fi
if [ "x$DAEMON" != "x" ]; then
APP=`which $APP`
fi
if [ "x$APP" == "x" ]; then
help
fi
#run script
case $CMD in
start) start
;;
stop) stop
;;
restart)
restart
;;
esac
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