On my systems
-------------
ifconfig
netstat -nat
apt-get install package-name
apt-get update
apt-get upgrade
apt-get dist-upgrade
apt-get purge package-name
sudo
reboot
cat
ls -l
history


Bind Commands
--------------
/etc/init.d/bind9 restart
/etc/init.d/bind9 reload
dig
emacs /etc/bind/named.conf.* /etc/bind/db.*
less /var/log/daemon.log


On servers
-------------
citv init
citv createvm
citv powerdownvm
citv bootvm
citv showvm
citv showrunningvm
citv getip


On desktop
----------
ssh
vncviewer