[kwlug-disc] Question about `ps` and `grep`

[Chris Craig]

On Fri, Sep 27, 2024 at 7:30 PM Ronald Barnes via kwlug-disc <
kwlug-disc at kwlug.org> wrote:

> I'd even asked ChatGPT (4o mini) this question and its answer was quite
> good, but it still didn't trigger understanding:
>
>  > The grep [t]mux command searches for the term "tmux". The square
>  > brackets around the "t" create a character class that matches the
>  > letter "t". This means that it will match "tmux" but not the literal
>  > string "grep tmux".
>
> I was really dumb this week.
>

Not at all!

In this case ChatGPT is wrong as it often is. The command "grep [t]mux"
does match the literal string "grep tmux". What it doesn't match is the
literal string "grep [t]mux".
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