This will be a quickie. Basically, the UNM CS machines have the sl (steam locomotive) command set up, which is incredibly annoying if you happen to accidentally type "ls" incorrectly - something I manage to do quite regularly. Let's replace this with ls.
Open ~/.bash_profile with your favorite text editor, and toss this in there (if it's not already there):
Next, open ~/.bashrc and throw this up:
alias sl='ls' alias LS='ls' alias l='ls'
If there's something already in there, do not overwrite it, unless you know what you're doing. Just append this to whatever is already there.
Restart your SSH session and you should be good to go.