Install Tomcat on Linux system and configure Service startup and shutdown

    #!/bin/bash 
    # This is the init script for starting up the 
    # Jakarta Tomcat server 
    # 
    # chkconfig: 345 91 10 
    # description: Starts and stops the Tomcat daemon. 
    # 
 
    # Source function library. 
    . /etc/rc.d/init.d/functions 
 
    # Get config. 
    . /etc/sysconfig/network 
 
    # Check that networking is up. 
    [ "${NETWORKING}" = "no" ] && exit 0 
 
    export JAVA_HOME=/usr/local/javaweb/jdk1.8.0_192 #your own jdk installation directory tomcat_home=/usr/local/tomcat/tomcat #your own tomcat installation directory startup=$tomcat_home/bin/startup.sh 
    shutdown=$tomcat_home/bin/shutdown.sh 
 
    start(){ 
      echo -n "Starting Tomcat service:" 
      cd $tomcat_home 
      $startup 
      echo "tomcat is successfully started up" 
    } 
 
    stop(){ 
      echo -n "Shutting down tomcat: " 
      cd $tomcat_home 
      $shutdown 
      echo "tomcat is successfully shut down." 
    } 
 
    status(){ 
      numproc=`ps -ef | grep catalina | grep -v "grep catalina" | wc -l` 
      if [ $numproc -gt 0 ]; then 
        echo "Tomcat is running..." 
      else 
        echo "Tomcat is stopped..." 
      fi 
    } 
 
    restart(){ 
      stop 
      start 
    }  
    # See how we were called. 
    case "$1" in 
    start) 
      start 
      ;; 
    stop) 
      stop 
      ;; 
    status) 
      status 
      ;; 
    restart) 
      restart 
      ;; 
    *) 
      echo $"Usage: $0 {start|stop|status|restart}" 
      exit 1 
    esac