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This interface is called the command line; you type in a command and it
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displays the result. The shell we are using is called the korn shell (ksh).
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If you come from the Linux world, it's similar to bash, but simpler.
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Finally, display the file README. But this time, we are not going to use
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cat, but instead less:
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$ less README
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(Again, don't type the $ dollar symbol; the $ dollar symbol means: run as
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normal user)
