therion(1) on Linux
The text 9f2a9fd45900, as Debian 8 (Jessie), Debian 7 (Wheezy) shipped it.
program to draw cave surveys
Flags it lists
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--help -
--print-encodings -
--print-init-file -
--version -
-L -
-d -
-g -
-h -
-i -
-l -
-p -
-q -
-s -
-u -
-v