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Re^3: How to restore from redirecting STDOUT to variable?

by mbethke (Hermit)
on Jan 17, 2013 at 04:30 UTC ( #1013706=note: print w/ replies, xml ) Need Help??


in reply to Re^2: How to restore from redirecting STDOUT to variable?
in thread How to restore from redirecting STDOUT to variable?

That you want the file descriptor dup()ed, i.e. get a new file descriptor that refers to the same output stream as STDERR and a Perl-level file handle layered on top of that.

As the open() perldoc also explains, this is even better written with an '=' after the ampersand:

open my $save_out, '>&=', \*STDOUT or die "Can't fdopen STDOUT: $!"; open STDOUT, '>&=', $save_out or die "Can't restore STDOUT: $!";
This avoids creating an all new file descriptor but reuses the system's for a new Perl file handle.

Replies are listed 'Best First'.
Re^4: How to restore from redirecting STDOUT to variable?
by anaconda_wly (Scribe) on Jan 17, 2013 at 06:01 UTC
    Great! Thank all!

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