Number or renumber lines.
Usage examples
Number entire file starting with 10
:%Numbered 10
Number lines in selected range
:'<,'>Numbered
Given a buffer with the following lines:
1. First
2. Second
3. Third
4. Fourth
5. Fifth
After running the command:
:%Numbered 10
The buffer will look like:
10. First
11. Second
12. Third
13. Fourth
14. Fifth