unix.txt is a unix reference guide and learners manual. Useful for beginning unix users, people who want to participate in “Hacker Wargames” or windows users who are concidering makeing the switch to unix.
You can download it from the following link: https://packetstormsecurity.com/files/download/22960/unix.txt
Source: https://packetstormsecurity.com/files/22960/unix.txt.html