ls - list directory contents
ps - list processes
cd - change directory
mkdir - create directory
touch - create file
man - get information about a command
rm - remove file or directory
rmdir - remove empty direcotyr
echo - print message to terminal
ssh - connect to a computer via a secure protocol
time - measure time duration a command takes to complete
service - manage (start/stop/restart) services
vim - powerfull text editor
uptime - check for how long a system has been running and load
uname - get system/kernel information
top/htop - realtime task manager
useradd - create user account
passwd - manage account password
chown - change file/direcotry owner
chmod - change file/directory permissions
ipconfig - view network information
ip - view/edit network information; supersedes multiple legacy applications
systemctl - manage processes on OSes that use Systemd
netstat - view information about ports and tcp/udp connections
ss - view information about ports and tcp/udp connections; replaces netstat
tail - view the last 10 rows of a file
head - view the first 10 rows of a file
df - view filesystem information
du - view space usage info per file/directory
sudo - "super user do" run command with root permissions
su - switch user

A list of the most used linux commands