I presented a talk for the APIIT Open Source Group Open Day on FOSS on March 25th. It's about how to deal with seemingly complex problems with the use of simple pipes and open source tools available in most open source Unix systems. It's an introductory presentation, and includes some links for those new to development of solutions using Unix tools.
The example case is how to replicate some features of expensive backup software, in one line of shell script.
I didn't see it available at the APIIT website, so I'm making it available here at my website.