To start with, I would not use relative paths. I would define a base path and work from there.

#!perl -w
use strict;

my $file = "graq.txt";
my $source = &get_path("oldfiles/$file");
my $result = &get_path("newfiles/$file");

open( READ, "<$source" ) or die( "Could not open $source: $!\n" );
open( WRITE, ">$result" ) or die( "Could not write to $result: $!\n" )
+;
while(<READ>)
{
   # Do stuff.
   print WRITE $_;
}
close WRITE;
close READ;

# ---------------------------------
# Local Functions.
sub base_path { '/home/main/sub'; }

sub get_path { return &base_path."/".$_[0]; }
[download]

You could define them with use constant or some other way. Which is just another TIMTOWTDI...

editTypo in die()/edit

--
Graq

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