runCommand -package:wai-app-static -package:libmpd -package:shake-plus -package:pandoc-plot -package:xmonad-contrib -package:graphviz is:exact -package:cabal-install

Runs a command using the shell.
Run a Command.
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.