Plan 9 from Bell Labs’s /usr/web/sources/patch/applied/bgmap-rename
--rw-rw-r-- rsc sys 561 Jan 28 2005 bg --rw-rw-r-- rsc sys 21 Jan 28 2005 files --rw-rw-r-- rsc sys 0 Jan 28 2005 notes --rw-rw-r-- rsc sys 61 Jan 28 2005 origls --rw-rw-r-- rsc sys 82 Jan 28 2005 readme