this post was submitted on 20 Oct 2023
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How to replace string with a function value? (alien.top)
submitted 1 year ago by [email protected] to c/[email protected]
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I want to convert the timestamps in a .zsh_history file to their readable equivalents.

Is there some search and replace I can do in emacs that will replace the time with something like (format-time-string unixtime)?

: 1568128379:0;cp -a ~/.zshrc.pre-oh-my-zsh ~/.zshrc
: 1568128381:0;exit
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[–] [email protected] 1 points 1 year ago

C-h a replace-regexp , select the function, and look at its help string.

The solution will end up looking something like:

M-x replace-regexp  : \([0-9]+\):\(.*\)  \,(+ 1 \#1):\2

But with (format-time-string) instead of my (+1 1 \#1); I don't know time formatting functions in emacs elisp off the top of my head, sorry.

(Or use query-replace-regexp if you want interactivity.)