TuxWars Guidelines

Basics

What is Linux? Why Linux? Linux vs Windows
Linux Directory Hierarchy : here
Commands like: pwd, ls, ls -a, ls -l, cd, mkdir, mkdir -p, who, w, whoami, rm, rm -r, mv, vi, cat, less, man, cp, history, echo (with options), find, locate, passwd.
pipe(|), redirection (> and <) : here at tldp { btw : tldp is an excellent resource :) }
Shell Scripting (special shell variables($?, $$), if/else, switch case, for, while)
sudo
File permissions
Intro to text editors: VI, gedit etc, C hello world program using VI
grep, cut, ssh, tr

Main

Linux Booting Process here at slashroot.in.
System daemons
Special files (.bashrc, /etc/shadow, /etc/passwd), passwd command
package manager pacman, yum, zypper, apt-get, yast
sudo, su
Environment Variables.
inodes, stat and ls -i.
Hard and Soft links (ln command)
free
ps, top, jobs, bg, fg
head, tail
find, locate.
man, apropos.
tar
wall, write, mesg.
eval,bc.
Signals, kill, trap.
chmod,chown, chgrp, umask ls -l output, setuid, setgid and sticky bits.
awk sed

Networking:

ping
ifconfig
Ports /etc/services
nmap
ssh, scp
netcat

System Programming:

fork
exec
wait
exit
zombie and orphan processes.
Buffering (Fully Buffered, line Buffered, Unbuffered)
Inter Process Communication(Pipe, FIFO)

Reference Books:

Unix - Concepts and Applications by Sumitabha Das.
Advanced Programming in the UNIX environment by Richard W. Stevens.

Note: THis Is JuST a GuIDEliNe.