runCommand -package:options -package:shake -package:io-streams -package:graphviz -package:cabal-install -package:shake-plus -package:quickcheck-state-machine -package:pandoc-plot -package:hledger is:exact

Runs a command using the shell.
Run command against the database and return its result
Given a list of command/action pairs, prompt the user to choose a command using dmenu and return the corresponding action.