Another option, which I have never used, is Tie::FileHandle::MultiPlex.

... and if you hunt around CPAN, you'll also find Filter::tee and IO::Tee, which look to be of a similar vein.

However, if you want to avoid modules or a dependency on an external (and potentially not portable!) binary, you can acheive tee-like functionality in Perl with the following snippet (adapated from The Perl Cookbook 16.5) ...

sub tee {
  my $file = shift;

  open  FILE, "> $file"
    or die "Cannot open($file) for writing: $!\n";

  return if my $pid = open STDOUT, "|-";

  die "Cannot fork STDOUT: $!\n" unless defined $pid;

  print FILE while <STDIN>; 
  close FILE;

  exit;
}

tee('/some/file');

while ( <> ) {
  print;
}
close STDOUT; # be nice to tee's

[download]

Update: D'oh... shoulda tested the code in the <readmore> before posting. Although it prolly still could be made to work, ybiC's code is simpler.

    --k.


In reply to Re: Re: printing to STDOUT and a Logfile by Kanji
in thread printing to STDOUT and a Logfile by oroburos

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