If you’ve heard about or thought about learning the Linux operating system, but didn’t know where to start or what’s a good resource, the publisher O’Reilly has an oldie-but-goodie online – for free!
Bill McCarty’s 1999 Learning Debian GNU/Linux is 300+ pages of insightful Linux wisdom – it normally costs $34.95 in print, but again it’s online for free at this URL.
From the philosophical “why?” to the practical command line (CLI) there’s a lot of ‘comp sci’ wisdom to be explored in this online tome.
The Symbols and Numbers Index is an especially golden reference!