Launch GDB in Eclipse via cli - eclipse

Can I launch GDB in Eclipse via CLI (maybe using "External Program") and end up in the graphical debug sessing where I can step line-line with GUI?

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Building Netbeans from Apache Ant

I've never used Ant to build software. But, according the the instructions in the picture
I can build NetBeans using Ant.
My question is how do I proceed? I have NetBeans downloaded and the JDK.
Should I use a command window from Windows OR does Ant have its own Command Window.
If so, how do I open this command window so I can build NetBeans?

remote debugging jython script runned by java program with eclipse and Pydev

I am trying to debug a jython script which runs via a java project. I have installed pydev in my eclipse IDE and I followed these instructions(http://www.pydev.org/manual_adv_remote_debugger.html). when I am running the java app while python debug server is running debugger recognizes normally that the jython script is going to be executed halt the excecution and wait for step over or resume commands.
The problem is that PyEdit(editor window) does not highlight the lines which are executed. Also debugger does not know the breakpoints of the scripts. It seems like debugger can not correlate the running thread with the script file.
Is there any way to configure pydev server to correlate debugging with a specific file?

Debug in Eclipse while running from command line ubuntu

Is there a way I can debug my application (using breakpoints in eclipse) while running it from command line (ubuntu)? I'm using Eclipse Kepler version on Ubuntu 12.04LTS.
I know there's something like attach to process in .net, was wondering if eclipse has some such setup.
Thanks,
Is your application written in C or in Java?
If your application is in C and you are using CDT, you can attach to existing project by:
Run your application from terminal.
In Eclipse CDT, go to main menu "Run"->"Debug Configurations...", double-click "C/C++ Attach to Application" and press "Debug" (you should not need to specify executable and/or project).
For Java applications, see this

How to launch a launch configuration in Eclipse from ANT

Is there a way to launch a run / debug configuration from my ANT script?
I believe that the Ant4Eclipse plug-in can enable you to run Eclipse launch configurations using ANT.
An Exectuor is an ANT task that can run Eclipse launch configurations.

running eclipse debugger with program launched by script

How do you run the debugger in Eclipse on a program launched with a Python script?
I have a executable (written in Fortran) that is launched using Python and I would like to use gdb integrated in Eclipse, but I don't know how to tell Eclipse or GDB what executable I am trying to debug.
I am using Eclipse IDE for C/C++ Developers Indigo Service Release 2 on Mac OSX Lion.