There's no simple way to close all files. You can try: 

use POSIX;
POSIX::close($_) for (0..1024);

[download]
Also exec(3) will close most of the fds

Update: also read how to close all files

Also this should be POSIX::close

In reply to Re: Closing all filehandles associate with an fd by zwon
in thread Closing all filehandles associate with an fd by james.oden

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