There's more to it. Whitespace on both sides of the filename gets stripped. Tough luck if your filename actually has whitespace on either end of its name...

From perldoc -f open:

The filename passed to open will have leading and trailing whitespace deleted, and the normal redirection characters honored.

In reply to Re: Re: open my $fh, MODE, FILE vs. open my $fh, "MODE FILE" by bart
in thread open my $fh, MODE, FILE vs. open my $fh, "MODE FILE" by Anonymous Monk

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