>>_yfoe+(OP)
I use this bash function to achieve something similar using the existing (and much larger) database commandlinefu.com:

    howdoi() { curl "http://www.commandlinefu.com/commands/matching/$(echo "$@" | sed 's/ /-/g')/$(echo -n $@ | base64)/plaintext"; }

>>evolve+Vx
Someone else in the thread suggested 'tin', which I love!

"What does 'curl' do?"

"Does what it says on the tin page."

  $ tin curl
  # get the contents of a web page
  curl https://news.ycombinator.com/