Applying Copyleft To Non-Software Information

Copyleft contains the normal copyright statement, asserting ownership and identification of the author. However, it then gives away some of the other rights implicit in the normal copyright: it says that not only are you free to redistribute this work, but you are also free to change the work. However, you cannot claim to have written the original work, nor can you claim that these changes were created by someone else. Finally, all derivative works must also be placed under these terms.

Stutz, Michael. GNU. Articles>Intellectual Property>Copyright>Open Source

Hone Your Regexp (Regular Expression) Pattern-Building Skills

Add to your bag of tricks several handy techniques for crafting real-world regular expressions (regexps). Building regexps is a part of the daily life of any administrator. Learning to think in terms of pattern matching, in order to construct successful regexps that return the desired criteria, is a skill that takes both time and practice.

Stutz, Michael. IBM (2006). Articles>Content Management>Programming