says, adding use strict
and use warnings
is always a good practice.
I am curious about this fragment:
$filename = <$FN[$k]>;
$file->open("< $filename") or die("Can't read the source:$!");
The expression <$FN[$k]> reads from the file handle $FN[$k]. Do your files out-02-00.txt, etc. contain a file name or do they contain data? If the latter,
I think you want just $filename = $FN[$k];
Update: The following curiosity has been cleared up by duff below.
The curious part is that my testing shows that $filename is actually being set to $FN[$k] (cygwin-perl 5.8.8). However, this supposedly equivalent code sets $filename to undef:
$filename = readline($FN[$k]);
Update: Some more testing shows that if $f
is the path of an existing file, then <$f>
(assuming that $f
has not been used as a file handle. Otherwise it returns undef
. Ver interesting...