Linux, the most popular (and most misunderstood) operating system can be very hard and frustrating to users who are not familiar with the text side (called the Terminal) because of all of its commands. Get one command wrong, and the operating system may not do what you expect.
With the Linux Command Reference (LCR), users have access to the most widely used Linux commands to date. As the screen shots show, one just has to go into a topic that he or she wants to know more about, and the iPhone or iPod Touch will show them the command that a user needs to do for a certain task.
Now updated to work with iOS 5 and up.