Re: Real sh? Or other efficient shell for non-interactive scripts

[Joerg Schilling <Joerg.Schilling@xxxxxxxxxxxxxxxxxxx>]

Warren Young <wyml@xxxxxxxxxxx> wrote:

> On Apr 27, 2015, at 4:38 AM, Joerg Schilling <Joerg.Schilling@xxxxxxxxxxxxxxxxxxx> wrote:
> > 
> > This is the SVr4 Bourne Shell, so you need to take into account what has been 
> > added with Svr4:
>
> Is there any difference between your osh and the Heirloom Bourne Shell?
>
>   http://heirloom.sourceforge.net/sh.html

Heirloom did make quick and dirty ports and then stopped working.

Heirloom e.g. did make the same attempt to port to platforms that may cause 
problems with own malloc() implemenetaions:

-	add a private malloc for sh internal use based on mmap().

This however caused problems with some Linux distros that have been reported 
against my old Bourne Shell port, so I assume the same problems exist with 
Heirloom.

Heirloom added support for uname -S and for some linux ulimit extensions but 
then stopped working on the code after a few months

You still cannot get a working Bourne Shell from heirloom that behaves exactly 
like the Solaris shell.

My code added a lot more new features and it converted the code cleanly to use 
malloc() from libc. My code also allows all the modifications to be disabled 
via #ifdef's. This happens with "osh".

My code is actively maintained and fixed _all_ documented historic bugs, see:

	http://www.in-ulm.de/~mascheck/bourne/



> I see that you already wrote up the differences between osh and bosh in an earlier post.  Is there a good reason why these comparisons are not on the Schily Tools web page already? :)

The schily tools act as a container to publish the current code state. There is 
no such maintained web page. Given the fact that Sven Maschek wrote down a lot, 
it seems the information is still here.

I would be interested to understand why Heirloom seems to so well known and my 
portability attempts seem to be widely unknown.

Jörg

-- 
 EMail:joerg@xxxxxxxxxx                    (home) Jörg Schilling D-13353 Berlin
       joerg.schilling@xxxxxxxxxxxxxxxxxxx (work) Blog: http://schily.blogspot.com/
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