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  1. or download this
    #!/usr/bin/perl -w
    use strict;
    use IO::All;
    my $temp_file = io('?');
    "foo" > $temp_file;
    
  2. or download this
    Can't call method "print" on an undefined value at /usr/lib/perl5/site
    +_perl/5.8.3/IO/All.pm line 618.