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Script sample to start/stop for linux with nohup
#!/bin/bash
#
BASE=/tmp
PID=$BASE/app.pid
LOG=$BASE/app.log
ERROR=$BASE/app-error.log
PORT=11211
LISTEN_IP='0.0.0.0'
MEM_SIZE=4
CMD='memcached'
COMMAND="$CMD -p $PORT -l $LISTEN_IP -m $MEM_SIZE -v"
USR=user
status() {
echo
echo "==== Status"
if [ -f $PID ]
then
echo
echo "Pid file: $( cat $PID ) [$PID]"
echo
ps -ef | grep -v grep | grep $( cat $PID )
else
echo
echo "No Pid file"
fi
}
start() {
if [ -f $PID ]
then
echo
echo "Already started. PID: [$( cat $PID )]"
else
echo "==== Start"
touch $PID
if nohup $COMMAND >>$LOG 2>&1 &
then echo $! >$PID
echo "Done."
echo "$(date '+%Y-%m-%d %X'): START" >>$LOG
else echo "Error... "
/bin/rm $PID
fi
fi
}
kill_cmd() {
SIGNAL=""; MSG="Killing "
while true
do
LIST=`ps -ef | grep -v grep | grep $CMD | grep -w $USR | awk '{print $2}'`
if [ "$LIST" ]
then
echo; echo "$MSG $LIST" ; echo
echo $LIST | xargs kill $SIGNAL
sleep 2
SIGNAL="-9" ; MSG="Killing $SIGNAL"
if [ -f $PID ]
then
/bin/rm $PID
fi
else
echo; echo "All killed..." ; echo
break
fi
done
}
stop() {
echo "==== Stop"
if [ -f $PID ]
then
if kill $( cat $PID )
then echo "Done."
echo "$(date '+%Y-%m-%d %X'): STOP" >>$LOG
fi
/bin/rm $PID
kill_cmd
else
echo "No pid file. Already stopped?"
fi
}
case "$1" in
'start')
start
;;
'stop')
stop
;;
'restart')
stop ; echo "Sleeping..."; sleep 1 ;
start
;;
'status')
status
;;
*)
echo
echo "Usage: $0 { start | stop | restart | status }"
echo
exit 1
;;
esac
exit 0
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