How to start debug mode from command prompt for apache tomcat server?

I want to start debug mode for my application. But I need to start the debug mode from command prompt. Is it possible ? And will the procedure vary between tomcat 5.5 to tomcat 6.?

$ catalina.bat jpda start

$ catalina.sh jpda start

More info ----> https://cwiki.apache.org/confluence/display/TOMCAT/Developing

For windows first set variables:

set JPDA_ADDRESS=8000
set JPDA_TRANSPORT=dt_socket

to start server in debug mode:

%TOMCAT_HOME%/bin/catalina.bat jpda start

For unix first export variables:

export JPDA_ADDRESS=8000
export JPDA_TRANSPORT=dt_socket

and to start server in debug mode:

%TOMCAT_HOME%/bin/catalina.sh jpda start

1. From your IDE, create a remote debug configuration, configure it for the default JPDA Tomcat port which is port 8000.

2. From the command line:

   Linux:

   cd apache-tomcat/bin
   export JPDA_SUSPEND=y
   ./catalina.sh jpda run
   

   Windows:

   cd apache-tomcat\bin
   set JPDA_SUSPEND=y
   catalina.bat jpda run
   

3. Execute the remote debug configuration from your IDE, and Tomcat will start running and you are now able to set breakpoints in the IDE.

Note:

The JPDA_SUSPEND=y line is optional, it is useful if you want that Apache Tomcat doesn't start its execution until step 3 is completed, useful if you want to troubleshoot application initialization issues.

A short answer is to add the following options when the JVM is started.

JAVA_OPTS=" $JAVA_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8080"