The quit command quits the current view and displays a view with a lower level. If the current view is the user view, this command makes you exit from the system.
All the command modes are divided into three levels, which are as follows from the lowest to the highest:
User view (Users at level 0 or above can enter this view.)
System view (Users at level 2 or above can enter this view.)
AAA view (Users at level 3 can enter this view.)
You can use the quit command to return to a lower-level command view from a higher-level one. If the current view is the user view, you can use the quit command to quit the system.