一个服务的例子

#!/bin/bash
#
# memcached Init file for starting and stopping
#
# chkconfig: 35 80 30
# description: memcached startup script

# Source function library.

. /etc/rc.d/init.d/functions

MEMCACHED_OWNER="root"
MEMCACHED_HOME=/opt/App/memcached
MEMCACHED_BIN=$MEMCACHED_HOME/bin
MEMCACHED_PID=$MEMCACHED_HOME/memcached11311.pid
MEMCACHE_PORT=11311

function_check_pid_file()
{
    if [ -f $MEMCACHED_PID ];
       then
            echo "PID has locked in $MEMCACHED_PID, Script Exit."
            exit 1
    fi
}

function_stoping_check()
{
    if [ -f $MEMCACHED_PID ];
           then
            kill -0 `cat $MEMCACHED_PID` &>/dev/null
            ret=$?
            
            if [ $ret -eq "0" ]; 
                then
                   return "0"
                else 
                   echo "memcached isn't running but the PID file $MEMCACHED_PID exist. You should delete this file."
                   exit 1
           fi
          else 
            echo "NO PID file $MEMCACHED_PID exist."
            exit 1
    fi
}

case "$1" in
start)

function_check_pid_file

echo -n $"Starting memcached: "
su - $MEMCACHED_OWNER -c "$MEMCACHED_BIN/memcached -d -m 256 -p $MEMCACHE_PORT -u root -P $MEMCACHED_PID -c 5000"
echo "[OK]"
;;
stop)
function_stoping_check
echo -n $"Stopping memcached: "
su - $MEMCACHED_OWNER -c "kill `cat $MEMCACHED_PID` "
echo "[OK]"
trap "rm -f $MEMCACHED_PID" EXIT
;;
*)
echo $"Usage: $0 {start|stop}"
esac

tomcat pid设置

CATALINA_PID=/opt/deploy/qa-venus/tomcat.pid