some web sites on Telnet and some useful UNIX
commands.

1) http://oregonstate.edu/aw/tutorials/telnet/
A Telnet Tutorial

2)
http://www.nmsu.edu/~CandN/DOCS/UNIX/DOCS.Unix_commands.html
Basic unix Commands

3)
http://oregonstate.edu/aw/tutorials/telnet/pctelnet.html
A Telnet Tutorial: PC Information

4)
http://ece.oregonstate.edu/comp/doc/unix/commands.html
Useful UNIX commands

5) http://unix.about.com/gi/dynamic/offsite.htm?site=http://www.mhpcc.edu/training/vitecbids/UnixIntro/UnixIntro.html
Introduction to UNIX