it might be instructive to bracket the traverse_file in the first version with print statements and see what you get, e.g., replace the inner 
traverse_file($_);

[download]
with 
print STDERR "> $_\n";
exit 0 if ++$count > 100;
traverse_file($_);
print STDERR "<\n";

[download]
with a suitable our $count=0 at top level somewhere.

In reply to Re: foreach vs. while inside a directory tranversing subroutine by wrog
in thread foreach vs. while inside a directory tranversing subroutine by locked_user TomJerry

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