| echo | Print out a string to screen | Echo ‘Hello World’ | 
| man | Look at the manual page of a command | man man | 
| clear | Clear the screen | clear | 
| <tab> | Complete a path or command | <tab> | 
| cd | Change directory | cd /directory/path/ | 
| pwd | Print Working Directory | pwd | 
| ls | List the contents of a directory | ls /directory/path/ | 
| mkdir | Make a directory | mkdir /directory/path/new_directory/ | 
| cp | Copy content to another path | cp /directory/path/file.txt /directory/path/new_directory/ | 
| mv | Move content to a new path | mv /directory/path/file.txt /directory/path/new_directory/ | 
| rm | Delete content | rm /directory/path/file.txt | 
| cat | Print contents of a file to screen | cat /directory/path/file.txt | 
| head | Print out the first n lines of a file to screen | head -n 10 /directory/path/file.txt | 
| tail | Print the last n lines of a file to screen | tail -n 12 /directory/path/file.txt | 
| less | Read a file one page at a time | less /directory/path/file.txt | 
| wc | Print out line, word and byte count | wc /directory/path/file.txt | 
| grep | Search for lines that contain a specific pattern | grep “pattern” /directory/path/file.txt | 
| vim | Text editor | vim /directory/path/file.txt |