And while preaching "Best practices" why not go all the way and do it as follows:
open my $ALLLOG, '>', $ark2 or die "Unable to open $ark2: $!"; 
open my $SLOG,   '<', $ark3 or die "Unable to open $ark3: $!";

[download]
It employs lexical filehandles, uses the three arguiment version of open and does away with unnecessary double quotes.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In reply to Re^2: readline on closed filehandle SLOG error by CountZero
in thread readline on closed filehandle SLOG error by hassanq23

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