Yum

Yellow Dog Updater, Modified

Yum is a great CLI application, with GUI front ends, similar to Apt for RPMs that makes updating, getting information about, installing and removing RPMs easy. It's used by Yellow Dog, Fedora Core, and RHEL (and possibly more distros I do not know about). When you install something via Yum, Yum automatically downloads and installs all dependencies of the package you want if you don't have the dependencies, putting an end to dependency hell if the package you want is in your Yum repositories.

A great Yum configuration file for the most recent stable Fedora Core that adds great repositories can be found at http://www.fedorafaq.org/samples/yum.conf
I escaped dependency hell for Frozen Bubble by using Yum :)
by a thing July 15, 2008
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CLI

Command Line Interface

What all computers were before GUIs came about. CLI is an interface that only uses text. Some stupid people and groups (like micro$oft, apple and linspire) try to get rid of CLI taking a lot of power away from users. CLI is still used a lot on UNIX and UNIX-like OSs.

If you want to see what's so great about CLI, use GNU Bash on a GNU/Linux system.
GNU Bash is a great CLI.
by a thing June 26, 2005
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GPL

GNU General Public License

A copyleft free software license. That means that anyone can do anything with something under the GPL except deny others' rights given by them by the GPL. Also the GPL requires that all copyright notices and notices that refer to the GPL stay.
Save a GNU, use the GPL.

I <3 the GPL.
by a thing August 20, 2005
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