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Sun
31
Dec '06
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by Frank Spychalski filed under Computer
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I stumbled over three very handy shell variables CDPATH, HISTCONTROL and HISTIGNORE.
- CDPATH takes (just like PATH) a list of directories to use for tab-completion for cd, e.g. export CDPATH=".:~/:~/work/:~/download/" gives me a tab completion for the current (don’t forget this one!), my home, my word and my download directory.
- HISTCONTROL can be set to ignorespace, ignoredups or ignoreboth. The first ignores lines starting with a space (I’m not sure, why this is useful
) but the second causes bash to ignore duplicates. The last one turns turns both options on.
- HISTIGNORE takes a list of patterns for commands which should not be saved, e.g. export HISTIGNORE="rm *:cd *:[a-z][a-z]" ignores rm and cd with any parameter and every 2 letter command.
Related entries:
[...] Bash shell goodies [...]