CS 101: Command Line Review
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Part 1: Second Chance

We will continue to use the command line, so it's important that you are both familiar and comfortable with it. If you didn't complete the tutorial from two weeks ago, now is your chance to get caught up!

Don't forget:

• The up/down arrows and the tab key are your best friends. Use them often!

• Follow along on your own computer, ssh to student.cs.jmu.edu or use your mac terminal (if you have a mac) Don't just watch!

Part 2: List of Commands

Here are some of the commands that we have learned so far this semester. If you need to review how to use any of these commands, please ask questions or watch the videos above. You should also be familiar with the symbols ., .., ~, and &.

Directories ls list directory contents cd change directory pwd print working directory mkdir make directories rmdir remove empty directories Files cp copy files and directories mv move (or rename) files rm remove files or directories less view text file contents file determine file type Editors gedit GNOME text editor nano Nano's ANOther editor

Processes fg run in the foreground bg run in the background jobs list background processes kill terminate/signal a process top display current processes Networking host DNS lookup utility ssh secure shell client who show who is logged on exit logout / quit the terminal Commands man show reference manual history list previous commands which locate a command

Please remember to use the tab key often to complete whatever command or filename you're typing. Tab-completion not only saves you time, it also helps you avoid mistakes (e.g., misspelling something). Remember that you can use the up and down arrows to repeat previous commands.

Ready for more?

Check out http://ss64.com/bash/ for a longer list of Unix commands.