CODEWITHSUNDEEP
zsh
osa1
osa1

Reputation: 7078

ZSH avoid adding empty commands to history?

In zsh (with oh-my-zsh, is that matters) when I enter empty commands (e.g. just press enter) I see empty lines added to my ~/.zsh_history:

: 1508496422:0;ls
: 1508496422:0;vim
: 1508496482:0;
: 1508496482:0;
: 1508496482:0;
: 1508496482:0;
: 1508496490:0;
: 1508496490:0;
: 1508496490:0;
: 1508496490:0;
: 1508496494:0;ls

I'm wondering if it's possible to avoid adding these lines. I checked http://zsh.sourceforge.net/Doc/Release/Options.html but no luck. The reason why I'm trying to avoid adding empty lines is I'm using fzf and fzf lists these empty commands when I search in last commands in a directory.

If this is not possible in zsh side I'll try to search for a solution in fzf side.

Upvotes: 1

Views: 745

Answers (1)

Micah Elliott
Micah Elliott

Reputation: 10264

There are a few Zsh settings to control what goes into your history (though I'm surprised emtpies end up there; I can't reproduce that despite also using fzf and hitting blank RETs a lot).

The man page for zshoptions(1) describes:

  • HIST_IGNORE_[ALL_]DUPS — This should at least reduce your consecutive multiple empties down to one.

  • HIST_IGNORE_SPACE — Your empties might be treated as whitespace and thus be eliminated. I like this feature anyway for intentionall discarding commands by starting them with a space.

There is also the HISTORY_IGNORE option (not to be confused with Bash's HISTIGNORE) — described in zshparam(1) with an example — which lets you remove a set of patterns. An empty pattern may fix your case. It also has a zshaddhistory hook that you could use to more finely control exactly what goes into history.

Upvotes: 2

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