> Linux lets you open a directory as a file without an error, but then you can't do anything with it.

You can do something.

open my $d, '<', '..' or die $!;  # Doesn't die.
say -e $d;                        # 1.
say -d $d;                        # 1.
say -f $d;                        # Nothing.
chdir $d or die $!;               # Switches to the parent directory (
+read "perldoc -f chdir").

[download]

map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In reply to Re^2: "readdir() attempted on invalid dirhandle" error? by choroba
in thread "readdir() attempted on invalid dirhandle" error? by Anonymous Monk

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