Following Ant build script can be used to start, stop or restart your Tomcat server. First you should set the property "tomcat.home" to your Tomcat home directory. Then when you just execute the "ant" command, it will restart your running server.
Here are all the commands you can use with this script.
Start Up: "ant tomcat-start"
Shutdown: "ant tomcat-stop"
Restart: "ant" or "ant tomcat-restart"
Depending on the web application you are running, you may be getting an Out of Memory PermGen space error. If so, remove the comment marks and enable jvm argument <jvmarg value="-XX:MaxPermSize=256m"/> in the script (line 16).
