docs: def slack_ver():
      """Open file and read Slackware version
      """
      dist = read_file("/etc/slackware-version")
      sv = re.findall(r"\d+", dist)
      if len(sv) > 2:
          version = (".".join(sv[:2]))
      else:
          version = (".".join(sv))
      return dist.split()[0], version