Re: Executable shell scripts

[Mark Rosenstand <mark@borkware.net>]

Theodore Tso <tytso@mit.edu> wrote:
> On Sat, May 13, 2006 at 01:27:54PM +0200, Mark Rosenstand wrote:
> > > Every Unix I've ever seen works this way.  It'd be nice to have
> > > unreadable executable scripts, but no one's ever done it.
> > 
> > According to
> > http://www.faqs.org/faqs/unix-faq/faq/part4/section-7.html both
> > 4.3BSD and SunOS have. I can confirm that it works on current BSD's
> > as well.
> 
> Incorrect.  The FAQ stated that BSD4.3 and SunOS support executable
> shell scripts, but both BSD 4.3 and SunOS required that the shell
> scripts be readable.  I know, I've personally worked on BSD 4.3
> systems and worked on BSD 4.3 source.  Read the FAQ more carefully....

I only confirmed that it works on current BSD's, not that it used to
work that way on 4.3BSD (although that was my impression.)

Anyhow, I don't really mind the 111 mode, the point was to show shell
scripts being treated as executables. What I do want this feature for
is the "more useful case" that somehow got stripped off in the replies,
namely setuid and setgid scripts.