dhex(1) on Linux
The text c0b8fb59db83, as Debian 7 (Wheezy) shipped it.
hex editor with a diff mode
Flags it lists
-
-cb -
-cd -
-cl -
-f -
-g -
-h -
-k -
-m -
-o1b -
-o1d -
-o1h -
-o1o -
-o2b -
-o2d -
-o2h -
-o2o -
-ob -
-od -
-oh -
-oo -
-r -
-r1 -
-r2 -
-s1a -
-s1ab -
-s1h -
-s1hb -
-s2a -
-s2ab -
-s2h -
-s2hb -
-sa -
-sab -
-sh -
-shb -
-v -
-w -
-w1 -
-w2