Some of the popular Mac OS terminal commands are,
Ctrl+A - It goes to the beginning of the line
Ctrl+E - It goes to the end of the line
Ctrl+U - Clear the line before the cursor
Ctrl+K - Clear the line after the cursor
Ctrl+W - Delete the word before the cursor
Ctrl+_ - Undo the last command
Ctrl+B - Move cursor one character backward
Ctrl+F - Move cursor one character forward