Add explanation of what less is
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@ -78,6 +78,6 @@ One of the most powerful uses of the command line is called a pipe which allows
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lspci |less
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. Also | is called the pipe character.
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. Also | is called the pipe character. The command less is what is known as a pager that is really useful to see commands that produce lots of output interactively.
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To get the previous command you have entered press :kbd:`Up Arrow`. To go to the next command in your history press :kbd:`Down Arrow`.
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