Well, he meant "rename" when he said "rename"?!
(it's linked to perl rename)
-> Code should look like this
$ cat foo.pl
#!/usr/bin/perl -w
##################
open(OUT,">testfileA");
print OUT "This is testfileA\n";
close(OUT);
open(OUT,">testfileB");
print OUT "This is testfileB\n";
close(OUT);
open(IN,"/tmp/testfileA");
rename ("testfileB", "testfileA");
print <IN>;
close IN;
Yields:
$ ./foo.pl
readline() on closed filehandle IN at ./foo.pl line 15.
So the answer is "neither - rename closes the filehandle".
I.
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