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Q&A

Q1: What about aliases; how can I make aliases from the command line?
A1: Aliases are known as links in UNIX and are created with the ln command, much like using cp or mv.
Q2: Why can’t I use some of the commands as documented?
A2: You’re probably trying to operate on files that don’t belong to you. Try using sudo to run the command as root.
Q3: What’s the difference between a shell and a command prompt?
A3: The command prompt is generated by a shell. The default shell on Mac OS X is called tcsh. For the sake of keeping this hour as straightforward as possible, shell and command prompt were used interchangeably.
Q4: How can using the command line be dangerous?
A4: The command line is dangerous only because it’s new and isn’t nearly as friendly as the Finder. For instance, when you delete a file in the Finder, it goes to the Trash, where you can later remove it. When you delete a file at the command line, it’s gone for good.


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