Runs a Deno system command.

run.js

/**
 * Runs a system command.
 *
 * @param {string[]} flags An array of arguments, first one being the command name or path.
 * @returns {number} The command's exit-status.
 * @see https://docs.python.org/3/library/os.html#os.system
 */
async function run(flags){
  let command=new Deno.Command(flags[0],{'args':flags.slice(1)})
  let result=await command.output()
  for(let code of [result.stdout,result.stderr])
    console.log(new TextDecoder().decode(code))
  return result.code
}