But what if you do care?

• Here's another example:

        ps | less

• Now suppose you type !! | grep blah, which becomes

        ps | less | grep blah

• Ugh, now less is going to get in the way

  • The output will go into grep, so you won't see it

  • The prompts will also go into grep and confuse grep

  • It's all a big mess

• Well, not really

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Copyright © 2002 M. J. Dominus