Apache Tomcat Unix Script to start / stop / restart, or check current status

tomcat.sh

#!/bin/sh

#
# /etc/init.d/tomcat
#
# Startup script for Apache Tomcat Servlet Engine.
#
# Author: Mariano Ruiz <mrsarm@gmail.com> (2012)
#

### BEGIN INIT INFO
# Provides: tomcat
# Required-Start:
# Required-Stop:
# Default-Start: 2 3 5
# Default-Stop:  0 1 6
# Short-Description: Startup script for Tomcat Servlet Engine.
### END INIT INFO



# Install this service with:
#   insserv -d tomcat                                     -> SUSE
#   update-rc.d tomcat defaults                           -> Debian
#   update-rc.d tomcat start 20 2 3 5 . stop 20 0 1 6 .   -> Debian
#   systemctl enable tomcat                               -> Modern Ubuntu
#   chkconfig --level 235 tomcat on                       -> Other distros
#
# Uninstall this service with:
#   insserv -r tomcat                                     -> SUSE
#   update-rc.d -f tomcat remove                          -> Debian
#   systemctl disable tomcat                              -> Modern Ubuntu
#   chkconfig --level 235 tomcat off                      -> Other distros


# Tomcat installation directory
CATALINA_HOME="/java/tomcat7"

# Java installation directories
#JAVA_HOME="$JAVA_HOME"
#JRE_HOME="$JRE_HOME"
#CLASSPATH="$CLASSPATH"

# User under which tomcat will run, if "" use current user
TOMCAT_USER=""

# Tomcat Shutdown port number
SHUTDOWN_PORT="8005"

# Tomcat JPDA port number
JPDA_PORT="8000"

RETVAL=0

#LISTEN_LABEL="ESCUCHAR"
LISTEN_LABEL="LISTEN"
SHUTDOWN_STATUS=`netstat -vatn | grep $LISTEN_LABEL | grep $SHUTDOWN_PORT | wc -l`
JPDA_STATUS=`netstat -vatn | grep $LISTEN_LABEL | grep $JPDA_PORT | wc -l`


start() {
    # Start Tomcat in normal mode
    if [ $SHUTDOWN_STATUS -ne 0 ]; then
        echo "Tomcat already started"
    else
        echo "Starting tomcat..."
        if [ "$TOMCAT_USER" = "" -o "$TOMCAT_USER" = "$USER" ]; then
            $CATALINA_HOME'/bin/startup.sh'
        else
            su -l $TOMCAT_USER -c $CATALINA_HOME'/bin/startup.sh'
        fi
        while [ $SHUTDOWN_STATUS -ne 0 ]; do
            sleep 1
        done    
        RETVAL=$?
        echo "Tomcat started in normal mode"
    fi
}

debug() {
    # Start Tomcat in debug mode
    if [ $SHUTDOWN_STATUS -ne 0 ]; then
        echo "Tomcat already started"
    else
        echo "Starting tomcat in debug mode..."
        if [ "$TOMCAT_USER" = "" -o "$TOMCAT_USER" = "$USER" ]; then
            $CATALINA_HOME'/bin/catalina.sh' jpda start
        else
            su -l $TOMCAT_USER -c $CATALINA_HOME'/bin/catalina.sh jpda start'
        fi
        while [ $JPDA_STATUS -ne 0 ]; do
            sleep 1
        done    
        RETVAL=$?
        echo "Tomcat started in debug mode"
    fi
}

stop() {
    if [ $SHUTDOWN_STATUS -eq 0 ]; then
        echo "Tomcat already stopped"
    else
        echo "Stopping tomcat..."
        if [ "$TOMCAT_USER" = "" -o "$TOMCAT_USER" = "$USER" ]; then
            $CATALINA_HOME'/bin/shutdown.sh'
        else
            su -l $TOMCAT_USER -c $CATALINA_HOME'/bin/shutdown.sh'
        fi
        while [ $SHUTDOWN_STATUS -eq 0 ]; do
            sleep 1
        done
    fi
}

status() {
    if [ $SHUTDOWN_STATUS -eq 0 ]; then
        echo "Tomcat stopped"
    else
        MODE="normal"
        if [ $JPDA_STATUS -ne 0 ]; then
            MODE="debug"
        fi
    echo "Tomcat running in $MODE mode"
    fi
}

case "$1" in
  start)
    start
    ;;
  debug)
    debug
    ;;
  stop)
    stop
    ;;
  status)
    status
    ;;
  *)
    echo "Usage: $0 {start|debug|stop|status}"
    exit 1
esac

exit $RETVAL