nl(1) on Linux
The text e87386151eb3, as Debian 2.2 (Potato) shipped it.
number lines of files
Flags it lists
-
--body-numbering -
--first-page -
--footer-numbering -
--header-numbering -
--help -
--join-blank-lines -
--no-renumber -
--number-format -
--number-separator -
--number-width -
--page-increment -
--section-delimiter -
--version -
-b -
-d -
-f -
-h -
-i -
-l -
-n -
-p -
-s -
-v -
-w