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From: maart@cs.vu.nl (Maarten Litmaath)
Newsgroups: comp.unix.questions
Subject: Re: "system()" system call
Keywords: Strange error
Message-ID: <3045@solo1.cs.vu.nl>
Date: 23 Aug 89 19:36:59 GMT
References: <240@nikhefh.hep.nl>
Organization: V.U. Informatica, Amsterdam, the Netherlands
Lines: 25

a20@nikhefh.hep.nl (Marten Terpstra) writes:
\...
\main()
\{
\int count;
\extern int system();
\
\count=system(" mail -s x25-errors terpstra < /tmp/x25_errors ");
\
\}
\----------------------------
\
\When I compile and run this (compiling without any problems) the
\rather strange error message
\Unknown command: "#################################################"
\appears.

	$ strings -a `which mail` | grep 'Unknown command:'
	Unknown command: "%s"
	$

The standard input appears to contain an unknown in-band mail(1) command.
-- 
"rot H - dD/dt = J, div D = rho, div B = 0, |Maarten Litmaath @ VU Amsterdam:
  rot E + dB/dt = 0" and there was light.   |maart@cs.vu.nl, mcvax!botter!maart