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bug#3481: rgrep uses xargs -e

From: Sven Joachim
Subject: bug#3481: rgrep uses xargs -e
Date: Sat, 06 Jun 2009 09:31:56 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.94 (gnu/linux)

On 2009-06-05 22:29 +0200, address@hidden wrote:

> rgrep uses "xargs -0 -e grep -i -nH -e ..." but
> do you really want to make the '[-E eof-str] [-e[eof-str]]' = "grep"?

No, and it isn't done, since that would be "xargs -egrep" or
"xargs -E grep".

> Do you really want to use xargs -e at all?
> If so why not xargs -E?

Because -E requires a an eof-string while -e does not.

> Maybe this is confusion with grep -e.

I suppose not, but the -e option for xargs is probably superfluous.  It
had always been used since grep-find was introduced in Emacs 20; anybody
who remembers the reason (if any) for it?


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