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Using bash history

If you have ever typed a long command and needed to repeat it, or you need to repeat a series of commands, try using history instead of re-typing. The history command allows you see (and execute) previous commands.

Type history to see the last few commands you've entered. It will show you the command and a number. To execute the command use history !number where number is the number of the command listed. (e.g. history !234).

From http://www.gentoo.org/news/en/gwn/20040719-newsletter.xml

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