igal2(1) on Linux
The text ff3f0af4a384, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
online Image GALlery generator
Flags it lists
-
--AddSubdir -
--ad -
--as -
--help -
--www -
-C -
-a -
-c -
-e -
-f -
-h -
-k -
-n -
-r -
-s -
-u -
-x