http://qs321.pair.com?node_id=304388

   1: #!/usr/bin/perl -w
   2: # As our unix printer setup is weird and I sometimes want to
   3: # print to networked (HP) printers, I needed something like
   4: # netcat. I was unsatisfied with <tt>telnet</tt>, as it did
   5: # output stuff I didn't want, and I didn't want to add the
   6: # redirection to /dev/null. Perl to the rescue:
   7: 
   8: use strict;
   9: use IO::Socket;
  10: 
  11: select IO::Socket::INET->new(PeerAddr => shift, PeerPort => (shift || 23));
  12: print
  13:   for <>;
  14: 
  15: __END__
  16: # or, as a oneliner:
  17: perl -MIO::Socket -pe 'BEGIN{select IO::Socket::INET->new(PeerAddr=>shift,PeerPort =>(shift||23))}'