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On Mon, 30 Nov 2009 23:54:48 +0300
Alexander Gladysh <> wrote:

> > This won't work reliably due to charset issues, I fear.  You really
> > have to use proper operating system APIs for this job.  
> Even if I don't need absolute paths and all files and sub-directories
> that I traverse are guaranteed to be contain [a-zA-Z_-.] only?

There are too many issues to count.  Like, "What if the user has
aliased {dir,ls} to something else unexpected?"

This is very common in the UNIX world.