Have you ever noticed that some distributions of linux display different colors for different file types? For example, most redhat releases will have this setup by default, but when you go to use something else like Debian, you lose it.
The fact is that it's really nothing too fancy, it is just an alias setup in your profile. I use the bash shell, and I'm not too sure if this trick works with other shells.
Step 1: Login as the user you want to set this up on.
Step 2: Open the file named .bash_profile in your favorite editor.
Step 3: Add the line below to the file.
Code:
alias ls='ls --color'
Step 4: Save the file.
You will probably have to logout and log back in before you will see your new colored files.