[earnestinger]

I bet it was “bash” (with sed and rsync)

[koolba]

You forgot jq. The shell history is stored as json lines. Makes for easy grepping too.

[remram]

I mean how do you unify it? Is there a tool that will sync/unify the history for you?

[thr0w4w4y1337]

There is - and was featured here a couple of times. atuin dot sh. But it uses sqlite under the hood afaik