diff(1) on FreeBSD
The text c092efaf3f9c, as FreeBSD 12.0-RELEASE shipped it.
differential file and directory comparator
Flags it lists
-
--brief -
--changed-group-format -
--context -
--ed -
--exclude -
--exclude-from -
--expand-tabs -
--forward-ed -
--ifdef -
--ignore-all-blanks -
--ignore-blank-lines -
--ignore-case -
--ignore-file-name-case -
--ignore-matching-lines -
--initial-tab -
--label -
--minimal -
--new-file -
--no-ignore-file-name-case -
--normal -
--paginate -
--recursive -
--report-identical-files -
--show-c-function -
--speed-large-files -
--starting-file -
--strip-trailing-cr -
--text -
--unidirectional-new-file -
--unified -
-B -
-C -
-D -
-I -
-L -
-N -
-P -
-S -
-T -
-U -
-X -
-a -
-b -
-c -
-d -
-e -
-f -
-i -
-l -
-n -
-p -
-q -
-r -
-s -
-t -
-tabsize -
-u -
-w -
-x