login [username]
shutdown [options] [time] [message]
halt [options]
reboot [options]
sudo apt-get install package-name
mount [options] [source] [target]
umount [options] [target]
chsh [options] [username]
exit
last [options]
file [options] [file]
mkdir [options] [directory]
grep [options] [pattern] [file]
dd [options] [source] [destination]
find [options] [path] [expression]
mv [options] [source] [destination]
ls [options] [path]
diff [options] [file1] [file2]
cat [options] [file]
ln [options] [source] [link-name]
df [options] [path]
top [options]
free [options]
quota [options]
at [options] [time] [command]
lp [options] [command]
sudo adduser [username]
sudo groupadd [groupname]
kill [options] [pid]
crontab [options] [file]
ifconfig [options] [interface]
ip [options] [command]
ping [options] [host]
netstat [options]
telnet [host] [port]
ftp [host]
route [options]
rlogin [host]
rcp [options] [source] [destination]
finger [options] [username]
mail [options] [recipient]
nslookup [domain]
passwd [options] [username]
su [options] [username]
umask [options]
chgrp [options] [group] [file]
chmod [options] [mode] [file]
chown [options] [owner] [file]
chattr [options] [attribute] [file]
sudo [command]
ps [options]
who [options]
tar [options] [file]
unzip [options] [file]
gunzip [options] [file]
unrar [options] [file]
mtools [command]
man [command]
unendcode [options] [file]
uudecode [options] [file]