Re: How to include `$$' literally in the PS1 prompt?

[Clark J. Wang]

On 10/8/07, Andreas Schwab <schwab@suse.de> wrote:
>
> "Clark J. Wang" <dearvoid@gmail.com> writes:
>
> > On 9/30/07, Andreas Schwab <schwab@suse.de> wrote:
> >>
> >> "Clark J. Wang" <dearvoid@gmail.com> writes:
> >>
> >> > Anybody has any idea?
> >>
> >> PS1='[\\$\\$=$$ \w] \$ '
> >
> >
> > Sure it works but I don't think this is the way it should be. In this
> way,
> > to include `\\' in the prompt we have to write like this:
> >
> > $ PS1='\\\\\\\\'
> >
> > It's really hard to read and understand. Isn't it a bug?
>
> No.  There are two levels of expansion, each using the same quote
> character (the backslash).  You can disable the second level with `shopt
> -u promptvars', so that quote removal is not applied to the value.


Thank you so much.

Andreas.
>
> --
> Andreas Schwab, SuSE Labs, schwab@suse.de
> SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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