Tomcat Startup and Shutdown script for Three Instances.

tomcat_instance.sh

#!/bin/bash
# Tomcat Startup and Shutdown Script For Individual Instances
# Created By Mughil Anand Nainar

export JAVA_HOME="/usr/local/java/java"
export CATALINA_HOME="/usr/local/tomcat/instance1"
export JAVA_OPTS="-server -Dapp.log.environment=test -Xmx1024M -XX:PermSize=256m -XX:MaxPermSize=512m -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+PrintGCDateStamps -Xloggc:/var/log/tomcat/gc.log -Djava.awt.headless=true -Dfile.encoding=UTF-8 -Dsun.lang.ClassLoader.allowArraySyntax=true -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager"

start() {
         export CATALINA_BASE="/usr/local/tomcat/$1"
         export JAVA_OPTS="${JAVA_OPTS} -Dlog.home=/usr/local/tomcat/$1/logs"
         echo "Starting Tomcat $1 "
         $CATALINA_HOME/bin/catalina.sh start
}

stop() {
        export CATALINA_BASE="/usr/local/tomcat/$1"
        export JAVA_OPTS="${JAVA_OPTS} -Dlog.home=/usr/local/tomcat/$1/logs"
        echo "Stopping Instance $1"
        exec $CATALINA_HOME/bin/catalina.sh stop
        echo -n " Wait for 5 Seconds "
        pid=$(tomcat_pid $1)
        if [ -n "$pid" ];
        then
        kill -9 `ps aux | grep "[t]omcat/$1" | awk '{print $2}'`
        fi
        echo -n " Successfully Stopped Tomcat $1 "
        echo ""
}

restart() {
        stop $1 && start $1
}

tomcat_pid() {
    echo `ps aux | grep "[t]omcat/$1" | awk '{print $2}'`
}

version() {
        exec $CATALINA_HOME/bin/version.sh
}

instance1() {
          if [ " $2 " == " start " ];
          then 
             start $1
          elif [ " $2 " == " stop " ];
          then
             stop $1
          else
             restart $1
          fi
}

instance2() {
           if [ " $2 " == " start " ];
           then 
               start $1
           elif [ " $2 " == " stop " ];
           then
               stop $1 
           else
               restart $1
          fi
}

instance2() {
           if [ " $2 " == " start " ];
           then
               start $1 
           elif [ " $2 " == " stop " ];
           then 
               stop $1
           else
               restart $1
}

case "$1" in
    instance1)
        instance1 $1 $2
        ;;
    instance2)
        instance2 $1 $2 
        ;;
    instance3)
        instance3 $1 $2
        ;;
    version)
        version
        ;;
    *)
      echo " Unconfigured Instance --  USAGE: tomcat_instance.sh {instance1|instance2|instance3} {start|stop|restart} "
      exit 1
    ;; 
esac