Yum is just tool cool.  For the uninitiated yum is a package updater for Linux.  For you Windows folks think of it as Windows Update for everything installed on your computer, not just the Microsoft stuff.  I used apt-get for a few years and only rarely used yum.  Yum, however, appears to have grown past apt-get in popularity so I’m down with it (apt-get isn’t installed on Fedora by default, yum is).  According to the man pages the acronym stands for Yellowdog Updater Modified.  It is used to update/install/remove software packages on your system.  Whenever I install Linux on a box one of the first things I ususally do is open a command prompt and type yum update.  This command will update every installed package you have on your system.  It’s pretty effortless.  If you’ve never used it before you can see the man page here or you can just type man yum from a terminal window on your Fedora box.

Colin