<div dir="ltr">Very nice! BTW, in zsh it's `history -i`.</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Wed, Mar 4, 2026 at 8:37\u202fAM CrankyOldBugger <<a href="mailto:crankyoldbugger@gmail.com">crankyoldbugger@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Nice one!</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 4 Mar 2026 at 03:11, Chris Frey <<a href="mailto:cdfrey@foursquare.net" target="_blank">cdfrey@foursquare.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">It turns out that by setting the environment variable HISTTIMEFORMAT<br>
on startup to something like "%Y-%m-%dT%T " bash will both display<br>
the timestamp of all commands when you use the 'history' command,<br>
but also store the timestamps in the .bash_history file.<br>
<br>
Now I have an automatic trail of timed breadcrumbs in case I need it,<br>
for all my shell work.<br>
<br>
Just passing along the tip.<br>
<br>
- Chris<br>
<br>
<br>
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