Hello Monks,

I always find myself wanting to use an equivalent to grep on windows and seek a perl solution. I tracked down a script on the net and gave it some polishing up. It seems to behave.

#!/usr/bin/env perl
use strict;
use warnings;
use Cwd;

use File::Find;

=pod
 
=head1 DESCRIPTION
 
Usage: perl grep1.pl frobnitz txt
 
=cut

my $search_pattern=$ARGV[0];
my $file_pattern  =$ARGV[1];

find(\&d, cwd);

sub d {

  my $file = $File::Find::name;

  $file =~ s,/,\\,g;

  return unless -f $file;
  return unless $file =~ /$file_pattern/;

  open my $fh, $file or print "couldn't open $file\n" && return;

  while (<$fh>) {
    if (my ($found) = m/($search_pattern)/o) {
      print "found $found in $file\n";
      last;
    }
  }

  close $fh;
}

[download]

My question is what this line is doing:

$file =~ s,/,\\,g;

Also accepting any criticisms/improvements.

In reply to grep for windows by Aldebaran

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.