Vim's ex mode is similar to the command line mode which is designed for Batch processing.
Vim in Ex mode (also aliases as ex) is useful when:
- You're in need of editing (multiple) files non-interactively (as part of the script).
- Your connection is very slow or screen is not updated after your actions.
- Mappings and abbreviations are disabled.
- Common keys such as Escape or Control doesn't work.
There is Ex mode (vim -e) and improved Ex mode which allows for more advanced commands than the vi compatible Ex-mode (vim -E).
