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ShellsA shell is a program that executes the commands you type at a system prompt. The basic shell you use in Unix is one of only several possible shells. I recommend you use tcsh; it gives you lots of helpful things other shells may not provide. To find out which shell you are using, type echo $SHELL at the prompt. To switch to tcsh, type tcsh at the prompt. To change your shell permanently, type which tcsh at the prompt. This will give you a path. Then, type chsh at the prompt. It will ask you for the path of the new shell; type in the path that which gave you. Logout and log in again, and you should find yourself using tcsh. What does tcsh give you?
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