"GNU/Linux desktop users have a common problem: Whether they use
a GNOME or KDE desktop environment or stripped down window managers
like Black Box or FVWM, desktop programs will occasionally crash.
When they do, they can create large files called core dumps that
appear as the filename core somewhere on the user's filesystem.
These files can be many megabytes in size and can cause disk space
trouble if you're unaware of them.
"So what are core dump files for? Used mainly as an aid for
software developers to debug problems, a core dump is a snapshot of
the information in your system RAM at the moment a program crashes.
Most users aren't developers however, so although they serve a
purpose, they can be a problem. In this month's Command Corner,
we're going to show you how to prevent core dump files from being
created using the BASH command ulimit..."