Cmdline-insertdatetime is a project mainly written in Vim Script, it's free.
insert date or datetime in command line.
This is a mirror of http://www.vim.org/scripts/script.php?script_id=3601
insert date or datetime in command line. https://github.com/taku-o/vim-cmdline-insertdatetime
in commandline,
usage example,
input file name head . :w work
input
input file extension '.txt' . :w work20110525.txt
enter, and save file with date.