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From: vatsanp@unix386.Convergent.COM (Srivatsan Parthasarathy)
Newsgroups: comp.unix.questions
Subject: How does cat | vi work ?
Message-ID: <1337@unix386.Convergent.COM>
Date: 15 Oct 90 19:03:17 GMT
Distribution: comp
Organization: Unisys/Convergent, San Jose, CA
Lines: 14


	How does cat | vi work ?

	Particularly ^D. Cat should interpret the ^D as EOF and terminate
	but when I tried it out vi scrolled the screen.

	Consensus in my group seems to be that vi puts /dev/tty in
	raw mode. So cat cannot see ^D anymore as EOF. vi terminates
	when the user types :q! or something to that effect and cat
	exits because its output pipe gets broken. Anything different
	about cat | sh ?
-- vatsan

vatsanp@unix386.convergent.com