Unix can get hairy at times. These documents can help.

Unix documentation

LC's machines

• How to use MobaXTerm.  Your password is the same as on other U of L machines, email, etc. The authentication can sometimes get stuck.  If you try logging in and it just hangs, hit Ctrl-C and try again.

Unix in general

• Super-brief list of Unix commands
• Compiling in Unix -- and backing up.
• Unix tutorial for beginners (Versions of Unix differ; a few commands may not work)
• A short emacs tutorial.  emacs is a powerful editor available on Unix systems. 
• Shorter emacs tutorial:  type emacs, and use the commands in the drop-down menus.
• ...an even shorter list of basic emacs commands.

Further info for the hardcore:

• Getting started with the gdb debugger -- non-graphical version.
• The Unix FAQ
• The emacs FAQ
• Manuals for GNU packages (emacs, bash, gdb...)