I'm a long-time user of free/open source software, and write various things for both fun and profit. I don't take myself all that seriously and I do all of my own stunts.
You can find me at these fine establishments on the web: Open Source Musings, The Monday Kickoff, Weekly Musings. and The Plain Text Project.
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Nothing, and nowhere does it say that it's Linux only. This article is part of a series on fun things you can do at the Linux command line. Linux is just the focus in this instance.
And it's always great to watch someone learn or discover something new and interesting if they do make the switch. No matter what their age.