Linux.com: CLI Magic: Bash History Expansion

"The Bourne-Again SHell (bash) has a major user base and the fact that it has incorporated some useful features from the Korn shell (ksh) and C shell (csh) might be one of the reasons. History expansion, for example, was first implemented in csh.

"Entering the history command without any switches displays the history list with line numbers. If that's too much information, enter history N where N is the number of previously executed commands you want displayed..."

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