If you put print "$_\n"; at the top of your for loop you'll see what's going on.

readdir returns the file names without the path of the directory you opened, so you've got to open "$dir/$_" as well as skipping any directories.

I generally find glob much easier and quicker to use than readdir.

In reply to Re: Error "Use of uninitialized value $lines[0] in substitution (s///) at " with below Code by RichardK
in thread Error "Use of uninitialized value $lines[0] in substitution (s///) at " with below Code by Eric_h

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