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一個服務的例子

一個服務的例子   Java代碼   #!/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       Java代碼   CATALINA_PID=/opt/deploy/qa-venus/tomcat.pid     
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