runCommand -package:wai-app-static -package:libmpd -package:structured-cli is:exact -package:options -package:github-release -package:cabal-install -package:xmonad-contrib -package:pandoc-plot -package:graphviz

runCommand :: String -> IO ProcessHandle
process System.Process, io-streams System.IO.Streams.Process, hledger Hledger.Cli.Script
Runs a command using the shell.
runCommand :: MonadIO m => Command -> Action m Document
mongoDB Database.MongoDB.Query
Run command against the database and return its result