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Date: Tue, 29 Apr 1997 16:15:43 -0800 (AKDT)
From: Steve Howe <un_x@anchorage.net>
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To: freebsd-questions <questions@freebsd.org>
Subject: no pipes allowed
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why is it that some commands like "ls" and "which" won't accept pipes?

echo /etc | ls (will just list the current directory, not /etc)
echo  ppp | which (does nothing ...  no /usr/sbin/ppp)
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also - how does one get sh scripts to accept piped input ... ?