Dear monks,

I've been using the code below to match some files in the path described in the code. However I'm getting a "Use of uninitialized value $_ in pattern match (m//)" error.

#!/usr/bin/perl/

use strict;
use warnings;

my $i;
my $j;
my $k;
my $l;
my $id = "AC";

my $moved;

for ($i=2; $i<=3; $i++) {
my $j = sprintf ("%04d", $i);
  for ($k=1; $k<=3; $k++) {
  my $l = sprintf ("%05d", $k);
  my $path;
  $path = "/home/results/initial/$id$j/F${l}";
  chdir "$path";
  /MV(\d{4})/;  
  $moved = $1;
  print "$moved\n";
  }
 }

[download]

I seem to be getting this error even though I have changed directory into the directory specified in the path - which is something I don't want to do, I want to give the absolute path each time, but I was just trying to see if it would solve my problem. I also ran the script using perl -wc to check syntax/warnings but it comes back as "syntax correct". Also, if I do print `ls $path/MV*`; it finds the files fine and prints them. What do you think could be the source of my problem?

In reply to Use of uninitialized value $_ in pattern match (m//)? by fasoli

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