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|
#!/bin/sh
### check to see if cisco678polld.sh is running, start if needed
#clear
#reset
### execution tracing ON
#set -x
DAEMON=cisco678polld.sh
DPATH=~/srcz/mon_rrd
DLOCK=/tmp/rrd/${DAEMON}.lock
### check lock file
cklock() {
if [ -f ${1} ] ; then
if [ -r ${1} ] ; then
DPID=$( cat ${1} )
else
printf "lock is not readable\n"
fi
else
printf "lock does not exist\n"
fi
}
### check lock pid
cklockpid() {
if [ ${1} ] ; then
CKPID=$( ps ax |\
grep ${1} |\
grep -v 'grep' |\
awk '{print $1}' )
if [ ${CKPID} ] && [ ${1} -eq ${CKPID} ] ; then
printf "proc is running, lock is valid"
fi
else
printf lock pid does not exist\n"
fi
}
### check for running procs by name
ckprox() {
PSPIDZ=$( ps ax |\
grep ${DAEMON} |\
grep -v 'grep' |\
awk '{print $1}' )
}
start_daemon() {
( ${DPATH}/${DAEMON} ) &
cklock ${DLOCK}
cklockpid ${DPID}
}
stop_daemon(){
### remove lock, script should exit on its own
cklock ${DLOCK}
cklockpid ${DPID}
if [ -f ${DLOCK} ] ; then
rm -fv ${DLOCK}
fi
}
terminate_daemon() {
cklock ${DLOCK}
cklockpid ${DPID}
kill -9 ${DPID}
}
exterminate_daemons() {
### EXTERMINATE!
ckprox ${DAEMON}
for PID in PSPIDZ ; do
kill -9 ${PID}
done
}
case "${1}" in
'start')
start_daemon
;;
'stop')
stop_daemon
terminate_daemon
;;
'terminate')
stop_daemon
terminate_daemon
;;
'exterminate')
stop_daemon
terminate_daemon
exterminate_daemons
;;
'restart')
stop_daemon
terminate_daemon
start_daemon
;;
*)
printf "Usage: $0 {start|stop|terminate|exterminate|restart}\n"
;;
esac
### execution tracing OFF
set +x
|
