On Fri, May 31, 2013 at 2:05 PM, Fernando C.V. <ferk...@gmail.com> wrote:
> Would it make sense to create a whole shell infrastructure based on
> little small commands?
>
> I mean, not just replacing no-brainer builtin things like "echo", etc,
> but also things like "if", "while", "for", "set", by doing system()
> calls to an extremelly minimal shell. Would it make sense? maybe even
> a command for creating pipes. It wouldn't be POSIX-conformant, but
> then just as long as the names don't conflict and the commands were
> available the script would run on normal shells too.
>
> [...]
There is already a solution which does exactly this: `execline`.
http://www.skarnet.org/software/execline/
I didn't use it myself, but it seems to fit the profile you're
describing. Moreover `skarnet.org` server's seems to be completely
reliant on this and a few others.
Ciprian.
P.S.: Such a solution based heavily on `fork` and `execve` will
incur a lot of overhead... (Just this week I've written a few scripts
handling a couple hundred thousand files, and they're damn slow...)
