runCommand -package:structured-cli -package:github-release -package:process -package:shake-plus is:exact -package:io-streams -package:cabal-install -package:mongoDB -package:pandoc-plot -package:libmpd -package:graphviz -package:options package:xmonad-contrib

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