runCommand -package:shake -package:amazonka-cloudwatch-events -is:exact -is:exact -package:xmonad-contrib is:exact -package:io-streams -package:mongoDB -package:hledger -package:process -package:pandoc-plot -package:cabal-install -package:graphviz package:options

Either calls the given continuation, prints help text and calls exitSuccess, or prints an error and calls exitFailure. See runSubcommand for details on subcommand support.