Saving and Exiting (Linux in a Nutshell, 3rd Edition)

11.6. Saving and Exiting

Writing a file means saving the edits and updating the file's modification time.

Command	Action
`ZZ`	Quit vi, writing the file only if changes were made.
`:x`	Same as ZZ.
`:wq`	Write and quit file.
`:w`	Write file.
`:w` file	Save copy to file.
`:`n1,n2`w` file	Write lines n1 to n2 to new file.
`:`n1,n2`w` >> file	Append lines n1 to n2 to existing file.
`:w!`	Write file (overriding protection).
`:w!` file	Overwrite file with current buffer.
`:w %.`new	Write current buffer named file as file.new.
`:q`	Quit file.
`:q!`	Quit file (discarding edits).
`Q`	Quit vi and invoke ex.
`:vi`	Return to vi after Q command.
`%`	Current filename.
`#`	Alternate filename.