On Tue, May 01, 2001 at 10:43:40PM -0700, Jeremy C. Reed wrote:
> Does anyone know of a grep that can use multiple expressions that some
> are reversed, for example, one grep that can do the same as "grep
> keyword | grep -v exclude" (without knowing the placement of the
> keywords in the line)?
>
> Or can anyone share some examples of using awk to do this?
use perl. for example:
---cut here---
#! /usr/bin/perl
# arguments:
# -i include regexp
# -e exclude regexp
# remaining args are file(s) to search
use Getopt::Std ;
getopt('i:e:',\%opts);
# unbuffer output
$|=1;
while (<>) {
next unless (/$opts{"i"}/io);
next if (/$opts{"e"}/io) ;
print ;
}
---cut here---
the -i and -e arguments are regular expressions, not just literal
strings so you can make them as simple or as complex as you like.
craig
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craig sanders <[EMAIL PROTECTED]>
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