Related: for people who want to write their own Unix commands [1], not just use them :) -- an article I wrote for IBM developerWorks: http://jugad2.blogspot.in

Related: for people who want to write their own Unix commands [1], not just use them :) -- an article I wrote for IBM developerWorks: http://jugad2.blogspot.in/2014/09/my-ibm-developerworks-article.html http://jugad2.blogspot.in/2014/09/my-ibm-developerworks-arti... And this post shows a practical use of that utility: Print selected text pages to PDF with Python, selpg and xtopdf on Linux: http://jugad2.blogspot.in/2014/10/print-selected-text-pages-to-pdf-with.html http://jugad2.blogspot.in/2014/10/print-selected-text-pages-... [1] In C, but the guidelines shown are also applicable to writing Unix commands in other languages like Python and Ruby.