kdiff3(1) on Linux
The text 309c4098ccd5, as Debian 12 (Bookworm) shipped it.
Tool for Comparison and Merge of Files and Folders
Flags it lists
-
--L1 -
--L2 -
--L3 -
--abort -
--auto -
--base -
--config -
--confighelp -
--cs -
--fname -
--html -
--ignore -
--merge -
--noauto -
--out -
--output -
--query -
-L -
-b -
-m -
-o -
-u