Gallery: Linux designs t-shirt contest Summary: To celebrate the 20th anniversary of Linux, the Linux Foundation is holding a t-shirt contest. By Andy Smith | June 9, 2011 -- 08:18 GMT (01:18 PDT) Previous | Next Image 5 of 6 Forward submitted by Julio Carrillo. Topics: Operating Systems, Linux, Open Source, Software Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.