cd                                  - Change directory
ls                                  - List the current directory
ls -l                               - List the current directory in a list format
mkdir <dir>                         - create a directory
touch                               - create a new file
cp <path1> <path2>                  - copy a file or folder from path1 to path2
mv <path1> <path2>                  - move a file or folder from path1 to path2
pwd                                 - show the current path as an absolute path
passwd                              - change the password of the current user
passwd <user>                       - change the password of a specific user
vi <file>                           - file edit
vim <file>                          - file edit
screen -ls                          - list all screens
screen -S <name>                    - create a new screen
screen -rx <name>                   - attach to a screen
su <user>                           - switch user
su - <user>                         - switch user and change to users home directory
init 6                              - restart vserver
systemctl <start|stop> <service>    - start|stop|restart|reload a service
                                    - e.g. systemctl restart ts3server