Awesome Sysadmin: Curated list of open source sysadmin resources hosted on GitHub https://github.com/n1trux/awesome-sysadmin ᔥ
SOLID Review: Interface Segregation Principle http://www.runtime-era.com/2015/03/solid-review-interface-segregation.html
The Log File Navigator: Log file analyzer for the terminal with support for Linux & Mac http://lnav.org/