> perl -le 'open AA, ">/tmp/stderrtest"; close(STDERR); warn "Hello"; 
+close AA;' ; cat /tmp/stderrtest
>

[download]

As you can see it is not the next filehandle/file descriptor that warn() prints to, but just to file descriptor 2. When you close STDERR the newly opened file gets the now vacated file descriptor

In reply to Re: Using warn() when STDERR is closed by jethro
in thread Using warn() when STDERR is closed by akeyes

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