Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!mcnc!duke!bet
From: bet@orion.mc.duke.edu (Bennett Todd)
Newsgroups: comp.unix.wizards
Subject: Re: recursive grep
Message-ID: <15560@duke.cs.duke.edu>
Date: 12 Sep 89 02:59:22 GMT
References: <13710@polyslo.calpoly.edu> <144000002@cdp> <2390@auspex.auspex.com> <2403@wyse.wyse.com> <2434@auspex.auspex.com> <899@ecijmm.UUCP>
Sender: news@duke.cs.duke.edu
Reply-To: bet@orion.mc.duke.edu (Bennett Todd)
Organization: Diagnostic Physics, Radiology, DUMC
Lines: 25
In-reply-to: jmm@ecijmm.UUCP (John Macdonald)

The original poster asked for a straightforward construct to let him run
a "find . -type d ..." invoking "grep {}/*" for each directory found.
Other worthwhile suggestions have been offered which probably work
better for what he probably had in mind; however, I am surprised no one
mentioned the straightforward

	find . -type d -print | while read dir;do
		grep string $dir/*
	done

I don't know any way to do that sort of thing under C-shell, but Bourne
shell and successors handle it fine. There is this incredible feeling of
power in being able to type

	oifs=IFS
	IFS=":"
	while read login passwd uid gid tail;do
		# some processing for all the logins on the system
	done </etc/passwd
	IFS=oifs

whenever I feel like it.

-Bennett
bet@orion.mc.duke.edu