cd  
cd .. 
cd /
cp 
cp -f 
cp -r 
rm  
rm -f
rm -r
scp ~/<file> <user>@<pc>:/tmp  
scp <user>@<pc>:/<file> .
ssh <user>@<pc> -v
ssh -l <user> <pc> -v
more 
less
head
grep  
grep -i <arg> <file> 
grep -v  <arg> <file>
grep -c <arg> <file>
ping 
ping -c 10 
ping -s 10  
ping -f -s 10
tar cvzf x.tgz /etc/  ~ 
tar xvzf x.tgz  
sh <example.sh> 
sh -x <example.sh> 
test 
|
pipe
tail -20 <file>
tail -f <file> 
cat <file>
pkg_add -r <program>
ports 
man <program> | <config_file> 
man -k <arg>
dmesg 
uname -a
netstat --help 
netstat -rn | netstat -m
ifconfig | inconfig -l 
dhclient
dhcpd
tcpdump
find
halt | reboot
shutdown
ls
ls -l
ls -a
top
mount 
locate
passwd
adduser
vi
su
exit
ps 
ps ax
ps aux
>
>>

voorbeeld
cd /
ls
cd 
ls -l
dmesg | grep irq > example.txt
less example.txt
cat /etc/rc.conf >> example.txt
more example.txt
cat /var/log/messages > example.txt
head example.txt
grep irq example.txt
grep -i irq example.txt
grep -v example.txt | less
grep -c example.txt