ocamldebug -version (return code: 0)
The OCaml debugger, version 4.04.0
ocamldebug --help (return code: 0)
-c <count> Set max number of checkpoints kept
-cd <dir> Change working directory
-emacs For running the debugger under emacs; implies -machine-readable
-I <dir> Add <dir> to the list of include directories
-machine-readable Print information in a format more suitable for machines
-s <filename> Set the name of the communication socket
-version Print version and exit
-vnum Print version number and exit
-help Display this list of options
--help Display this list of options