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

Runs a command using the shell.
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.