Simple Groovy script to open an URL under Linux, as well as OSX or Windows.

open-url

#!/usr/bin/env groovy

/*
 * define CLI
 */
def cli = new CliBuilder(usage: "${this.class.name} [options]")

cli.usage()
/*
 * open URL
 */
String command = [
  "windows": "start",
  "linux": "xdg-open",
  "darwin": "open"
].find { key, value -> System.properties["os.name"].toLowerCase().contains(key) }.value

Process process = "${command} \"${args.join()}\".execute()
process.consumeProcessOutput(System.out, System.err)
process.waitFor()

System.exit(process.exitValue())