runCommand -package:wai-app-static -package:libmpd -package:pandoc-plot -package:beam-migrate -package:shake -package:quickcheck-state-machine is:exact -package:mongoDB -package:graphviz -package:options -package:github-release -package:hledger

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