Linux Command Reference

Question 1

$ whoami

Answer 1

print the current user logged in to the terminal session.

Question 2

$ man COMMAND

Answer 2

‘manual’ provides documentation for other commands.

man {command}

Question 3

$ clear

Answer 3

Will clear the terminal screen.
[-x]
will not clear the scroll back buffer.

‘ctrl’ + l will clear terminal.

Question 4

$ pwd

Question 5

$ type COMMAND

Answer 5

bin - executable
-shell built-in
-alias

Question 6

$ which COMMAND

Answer 6

tells us where the file is located

Question 7

$ help COMMAND

Answer 7

gives us information on the command. Can be used if no man-page exists.help