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Subject: Re: [9front] Re: /bin/"" use of rc -c instead of eval
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06.07.2024 03:49:46 Romano <me+unobe@fallglow.com>:
> cpu% pwd
> /
> cpu% "" cd /sys
> =C2=A0=C2=A0=C2=A0=C2=A0 cpu% cd /sys/src
> cpu% pwd
> /sys/src
> cpu%

That's not how it's supposed to work though. Let me illustrate:

> cpu% pwd
> /sys/src
> cpu% "
>=C2=A0=C2=A0=C2=A0=C2=A0 cpu% pwd
> cpu% ""
>=C2=A0=C2=A0=C2=A0=C2=A0 cpu% pwd
> /sys/src
> cpu%

" only displays the last command while "" executes it. An optional argument=
 can be used for filtering:

> cpu% pwd
> /sys/src
> cpu% cd /lib
> cpu% "" p
>=C2=A0=C2=A0=C2=A0=C2=A0 cpu% pwd
> /lib
> cpu%

Note that I never tested cd'ing with "", which means a lot. It's probably n=
ot as useful in most cases, which makes sense if you think about it: you us=
e cd to switch to another directory. When you're there, running it again is=
 a no-op at best, or it fails.

sirjofri