Date: Tue, 12 Jul 2011 07:44:25 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-fs@freebsd.org Subject: Re: request for review of exports.5 update Message-ID: <201107120744.26047.jhb@freebsd.org> In-Reply-To: <20110712202759.H1311@besplex.bde.org> References: <10589627.445480.1310418556785.JavaMail.root@erie.cs.uoguelph.ca> <alpine.GSO.1.10.1107111939390.6818@multics.mit.edu> <20110712202759.H1311@besplex.bde.org>
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On Tuesday, July 12, 2011 6:50:09 am Bruce Evans wrote:
> BTW, does anyone know a good way of not seeing duplicates in commands
> like "zgrep -r wrt /usr/share/man"? find(1) doesn't seem to have any
> flag to suppress duplicates. du(1) has to know how to not count
> duplicates internally. I think it as special code for this and there
> is no special support for this in fts(3). Recently I have been annoyed
> by duplicates under .svn. I want to type a simple grep -r or
> "find . | xargs grep" without any complicated pattern for the file names
> and not see multiple copies.
I actually have resorted to using specialized commands and aliases for
doing diffs and greps in source trees. From my .cshrc:
alias cvsdiff diff -uprN -x \'\*~\' -x \'\*.o\' -x \'\*.orig\' -x \'\*.rej\'
-x compile -x CVS -x .svn -I \'\\\$FreeBSD\'
alias cvsndiff diff -upr -x \'\*~\' -x \'\*.o\' -x \'\*.orig\' -x \'\*.rej\'
-x compile -x CVS -x .svn -I \'\\\$FreeBSD\'
(cvsndiff doesn't include new files)
And a script I keep in my ~/bin:
% cat kgrep
#!/bin/sh
#
# Grep inside a kernel directory skipping compile directories and revision
# control directories
find `ls` ! -path '*compile*' ! -path '*.svn*' ! -path '*CVS*' \
! -path '*cscope*' ! -type d -print0 | xargs -0 grep -H "$@"
I also use cscope and xcscope.el to navigate kernel trees which is faster
than grep for cases where it works.
--
John Baldwin
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