Over the years, I've found the following to be an excellent way to whip
up quick, very useful Perl scripts:

  #!/usr/bin/perl

  while(<>) {
    # do stuff . . .
  }

Is there an equivalent idiom in Ruby?  So far as I'm aware, there's no
catch-all diamond operator in Ruby that allows one to create a default
input behavior for a script that accepts either a filename or piped
output of another command the way this works in Perl.  I certainly hope
there's an equivalent, though.

-- 
CCD CopyWrite Chad Perrin [ http://ccd.apotheon.org ]
"The ability to quote is a serviceable
substitute for wit." - W. Somerset Maugham