Is there a way to make the history when pressing up in bash shared between shells?

Question

I've seen this answer:

Preserve bash history in multiple terminal windows

This works for history, but I'm wondering if there is way to extend this so pressing "up" is shared as well?

How does this differ from the second point in the post you linked? — Kevin, Apr 19 '12 at 18:01
it's not, but none of the solutions I saw seemed to accomplish that point — A Question Asker, Apr 19 '12 at 18:04
You need to get a new prompt by pressing enter in the second terminal after running the command in the first. — Kevin, Apr 19 '12 at 18:40

score 1 · Answer 1 · edited Apr 13 '17 at 12:22

1

While bash doesn't have this exact behavior, zsh can do this with

setopt inc_append_history share_history

See How do you share history between terminals in zsh?

edited Apr 13 '17 at 12:22

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1

answered Apr 19 '12 at 22:15

bahamat

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score 0 · Answer 2 · answered Apr 20 '12 at 00:14

It should be possible by telling bash to write out and re-read the history after each command. Untested:

PROMPT_COMMAND="$PROMPT_COMMAND"$'\nhistory -a; history -n'

Sharing the history is the default behavior of ksh. In zsh, you get this behavior by turning on the share_history option, and you can get much finer control over how the history is saved and merged by tweaking other history options.

Is there a way to make the history when pressing up in bash shared between shells?

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