There are several modules that allow you to do that (Tee). 
use File::Tee qw(tee);

tee(STDOUT, '>', "foo/bar.out");
tee(STDERR, '>>', "foo/bar.err");

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In reply to Re: Print STDERR&STDOUT to log file and to the screen by salva
in thread Print STDERR&STDOUT to log file and to the screen by Noame

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