:q	Quits Vim but fails when file has been changed
:w	Save the file
:w	new_name	Save the file with the new_name filename
:wq	Save the file and quit Vim.
:q!	Quit Vim without saving the changes to the file.
ZZ	Write file, if modified, and quit Vim
ZQ	Same as :q! Quits Vim without writing changes
:sav[eas] file	Save file as
:clo[se] Close the current pane

# ESC to start command prompt, then
:q!	# exit vi without saving
:wq!	# exit vi with saving (! means exiting even if file is read only)

// Save & exit(quit)
:wq

:wq	Save the file and quit Vim.