Unix e derivados - Aprendizagem

Pra aqueles que tiverem curiosidade em aprender mais sobre Unix e seus derivados, visitem os links:
http://plan9.bell-labs.com/7thEdMan/
http://minnie.tuhs.org/cgi-bin/utree.pl
http://www.lemis.com/grog/Documentation/Lions/
http://www.minix3.org/

http://plan9.bell-labs.com/7thEdMan/
http://minnie.tuhs.org/cgi-bin/utree.pl
http://www.lemis.com/grog/Documentation/Lions/
http://www.minix3.org/
