linux sh腳本文件

 linux 系統上部署了一個 web 服務程序（jar）,下面是一個 .sh 的啓停腳本的示例

#!/bin/bash
JAVA_HOME="/usr/lib/meeting/jdk/jdk1.8.0_181/"
 
#RUNNING_USER=meeting
 
APP_HOME=/usr/lib/meeting

JAR_NAME=meeting_reserve-0.0.1-SNAPSHOT; 
JAVA_OPTS="-Xmx4096m -Xms4096m -Xmn2048m"
 
psid=0
 
checkpid() {
   javaps=`$JAVA_HOME/bin/jps -l | grep $JAR_NAME`
 
   if [ -n "$javaps" ]; then
      psid=`echo $javaps | awk '{print $1}'`
   else
      psid=0
   fi
}
start() {
   checkpid
 
   if [ $psid -ne 0 ]; then
      echo "================================"
      echo "warn: $JAR_NAME already started! (pid=$psid)"
      echo "================================"
   else
      echo -n "Starting $JAR_NAME ..."
source /etc/profile
      BUILD_ID=dontKillMe nohup  $JAVA_HOME/bin/java  $JAVA_OPTS  -jar $APP_HOME/$JAR_NAME.jar >$APP_HOME/$JAR_NAME.log 2>&1 &
      checkpid
      if [ $psid -ne 0 ]; then
         echo "(pid=$psid) [OK]"
      else
         echo "[Failed]"
      fi
   fi
}
 
stop() {
   checkpid
 
   if [ $psid -ne 0 ]; then
      echo -n "Stopping $JAR_NAME ...(pid=$psid) "
      kill -9 $psid
      if [ $? -eq 0 ]; then
         echo "[OK]"
      else
         echo "[Failed]"
      fi
 
      checkpid
      if [ $psid -ne 0 ]; then
         stop
      fi
   else
      echo "================================"
      echo "warn: $JAR_NAME is not running"
      echo "================================"
   fi
}
 
status() {
   checkpid
 
   if [ $psid -ne 0 ];  then
      echo "$JAR_NAME is running! (pid=$psid)"
   else
      echo "$JAR_NAME is not running"
   fi
}
 
info() {
   echo "System Information:"
   echo "****************************"
   echo `head -n 1 /etc/issue`
   echo `uname -a`
   echo
   echo "JAVA_HOME=$JAVA_HOME"
   echo `$JAVA_HOME/bin/java -version`
   echo
   echo "APP_HOME=$APP_HOME"
   echo "JAR_NAME=$JAR_NAME"
   echo "****************************"
}
 
case "$1" in
   'start')
      start
      ;;
   'stop')
     stop
     ;;
   'restart')
     stop
     start
     ;;
   'status')
     status
     ;;
   'info')
     info
     ;;
*)
echo "Usage: $0 {start|stop|restart|status|info}"
     ;;
esac
exit 0