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Re: problem with egrep and fgrep


From: Stepan Kasal
Subject: Re: problem with egrep and fgrep
Date: Wed, 1 Sep 2004 11:26:19 +0200
User-agent: Mutt/1.4.1i

Hello,

On Tue, Aug 31, 2004 at 10:40:22AM -0700, Warren L Dodge wrote:
> cat egrep 
> #!/bin/sh
> exec grep -E ${1+"$@"}

> I think the egrep and fgrep were links to grep rather then a small script.

Yes, that's the traditional UNIX approach.
But I think tehy were different binaries for quite a long time, then links
for a short time.

The current approach is required of GNU coding standards, though it generates
some protests.

> It seems that the script should use $0 to calculate the path for grep.

That would slow down the wrapper.  I suggest that you add the full path to
the scripts.

But the best solution is probably to move to "grep -E" and "grep -F" --
these are standardized by POSIX, while egrep and fgrep commands are not.

Sorry,
        Stepan Kasal




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