Andree Leidenfrost said on Sat, Jun 24, 2006 at 09:46:01PM +1000: > To be honest, I would prefer to standardise on 'grep -E' instead of > egrep and 'grep -F' instead of fgrep.
Ok why not.
> The reason is that I believe that it is not necessarily clear what egrep
> and fgrep really are, e.g. on Debian sarge and Mandriva 2006 (yep, I
> just installed it in qemu, as that's what you are using... ;-) ) they
> are just scripts that use grep:
>
> > cat /bin/egrep
> #!/bin/sh
> exec grep -E ${1+"$@"}
>
> > cat /bin/fgrep
> #!/bin/sh
> exec grep -F ${1+"$@"}
Oh. That's a good reason indeed. Always thought it was a
softlink/hardlink testing its name. I never had the curiosity to look at
t closely. So as it's just a compatibility thing, we have to reove it
for perf.
> In this case, spawning another shell can be quite a bit of overhead
> especially in loops, so not so good, really.
Yes. right.
> My understanding is further that egrep and fgrep have been deprecated
> some time ago by POSIX in favour of 'grep -E' and 'grep -F'
> respectively. I don't have access to POSIX standards or changelogs,
> unfortunately. Do you have access via HP maybe (, could be useful for
> other things as well)?
Hummm, need to search. Maybe in libraries here.
> I would be happy to go through SVN stable and change all occurrences
> along with applying the patch itself, if you are happy with this.
If you don't mind and have energy to do it, please do ;-)
(there are more that what I showed previously)
Now, I have to change my habit ;-)
Greetings,
Bruno.
--
Linux Profession Lead EMEA / Open Source Evangelist \ HP C&I EMEA IET
http://www.mondorescue.org / HP/Intel Solution Center \ http://hpintelco.net
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