Beginner's Guide to the Bash Terminal
Same commands work on Ubuntu, Fedora and other Linux distributions. The output might be formatted slightly differently but its all the same information.
Command Prompt Commands for mac and linux. For windows download cygwin ( https://www.cygwin.com/ ) and then follow the tutorial.
Introduction on how to use the terminal on Mac OS X, Linux or any other Unix based OS. How to use basic line commands such as
pwd, cd, ls, cp, mv, pwd and clear.