runCommand -package:structured-cli -package:github-release -package:process -package:shake -package:mongoDB -package:pandoc-plot -package:shake-plus -package:quickcheck-state-machine -package:graphviz is:exact -package:cabal-install

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.
Given a list of command/action pairs, prompt the user to choose a command using dmenu and return the corresponding action.