class Ipcalc < Formula desc "Calculate various network masks, etc. from a given IP address" homepage "http://jodies.de/ipcalc" url "http://jodies.de/ipcalc-archive/ipcalc-0.41.tar.gz" sha256 "dda9c571ce3369e5b6b06e92790434b54bec1f2b03f1c9df054c0988aa4e2e8a" bottle :unneeded def install bin.install "ipcalc" end test do system "#{bin}/ipcalc", "--nobinary", "192.168.0.1/24" end end