in reply to Re^4: Hash of Arrays and File Operations
in thread Hash of Arrays and File Operations

I have tried the above syntax and it doesn't seem to be working.

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Re^6: Hash of Arrays and File Operations
by Anonymous Monk on Jan 28, 2010 at 22:56 UTC
    You may think you have, but you made a mistake :) Show your code and I'll tell you where 
    #!/usr/bin/perl --

use strict;
use warnings;

use Data::Dumper;
my @cols = ( 12, 12, 12 );

print Dumper( \@cols ),"\n";

tr/12/91/ for @cols[1.. $#cols];

print Dumper( \@cols ),"\n";

__END__
$VAR1 = [
          12,
          12,
          12
        ];

$VAR1 = [
          12,
          '91',
          '91'
        ];

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      Thanks a lot. Yeah I works and I was wrong. :) I was trying to do the following: 

      @cols = tr/12/01/ for @cols[0 .. $#cols]

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