new grep
Mohamed Ellozy
mohamed at hscfvax.harvard.edu
Tue Jun 21 22:20:18 AEST 1988
In article <16237 at brl-adm.ARPA> williams at nrl-css.arpa writes:
> Al Aho and I are designing a replacement for grep, egrep
> and fgrep. The question is what flags should it support and
> what kind of patterns ...
>
> I have always thought it would be nice to print only the first match.
>
> (Root Boy) Jim Cottrell <rbj at icst-cmr.arpa>
>
>I'll second this. There have been many times when I simply wanted to
>detect the presence of a pattern in a file, then stop searching. Combining
>this with the -n option can also be useful.
Also times when I am searching for something that is close to the start
of a long file (e. g. a host that is close to the start of /etc/hosts).
I can save time by doing a head -NNN | grep, but I must guess a suitable
value for NNN, while a grep that quits after the first match does it for
me.
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