bash_user wrote:
> That is correct.
> I would like to understand what triggers the shell to re-evaluate
> PROMPT_COMMAND every time
> directory / clock change occur.
The documentation for bash says:
PROMPT_COMMAND
If set, the value is executed as a command prior to issuing each
primary prompt.
It is not triggered when the current working directory changes. It is
triggered every time a prompt is printed. This is such a small amount
of cpu time that it is probably not worth the effort to make it only
happen when the directory changes.
Bob
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