Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!uunet!auspex!guy
From: guy@auspex.auspex.com (Guy Harris)
Newsgroups: comp.unix.shell
Subject: Re: execute stdin ?
Message-ID: <4068@auspex.auspex.com>
Date: 15 Sep 90 18:36:02 GMT
References: <3335@gmdzi.gmd.de>
Distribution: comp
Organization: Auspex Systems, Santa Clara
Lines: 13

>Is it possible (in sh or in csh) to execute a program that is read from
>stdin?

It's possible, although the ways you can do it depend on whether the
"program" is an executable image or a script.

If it's a script, you can try piping it to the interpreter (shell or
whatever).

If it's an executable image, in most UNIXes you must either put it into a
file, or construct some program that reads its standard input and sets
up its address space to contain the executable image it's reading and
then jumps to it.