The Unix system
The open group holds the unix trademark
in trust for the industry, and manages the unix trademark licensing program.
http://www.unix-systems.org/
Rosetta stone
Rosetta stone
http://bhami.com/rosetta.html
Manuals site
Unix manuals and help files
http://www.unix-manuals.com/
Manualplanet
manualplanet
http://www.manualplanet.com/
University of Edinburgh
University of Edinburgh
http://unixhelp.ed.ac.uk/
Unix and variant info
Helping you with unix and linux providing information on tons of unix commands simularities of unix and dos and more.
http://www.computerhope.com/unix.htm
Unix Tutorial
Cursusnetwerk voor gratis en betaalde online cursussen en workshops, gratis cursus, online cursus
http://www.cursusnetwerk.nl/unix-tutorial.html
Unix time sharing system
Unix time sharing system
http://cm.bell-labs.com/cm/cs/who/dmr/cacm.html
Unix guru universe
Unix guru universe
http://www.ugu.com/sui/ugu/show?help.beginners#general
Wikipedia about Unix
Wikipedia about Unix
http://en.wikipedia.org/wiki/unix