in reply to Re^3: printing source code green bar style
in thread printing source code green bar style
I think Aristotle's solution is the best (there's no way you'll get a laser printer to line up correctly on pre-lined paper without wasting lots o'paper). Here's a one liner to do what he suggests.
perl -MCGI -lp -e '$_ = CGI::p({-class=> $c++ % 2 ? 'even':'odd'}, $_ )' [file list]
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Seekers of Perl Wisdom