co(1) on Linux
The text fd259d6812d4, as Debian 8 (Jessie) shipped it.
check out RCS revisions
Flags it lists
-
-I -
-M -
-S -
-T -
-V -
-d -
-f -
-j -
-kb -
-kk -
-kkv -
-kkvl -
-ko -
-kv -
-l -
-p -
-q -
-r -
-s -
-u -
-w -
-x -
-z