
  Global Shell Options <a class="group-link" href="chap-option.html">option</a>


  [Errors]         nounset -u      errexit -e   inherit_errexit   pipefail
  [Globbing]       noglob -f       nullglob     failglob        X dotglob
                   dashglob (true)
  [Other Option]   noclobber -C    errtrace -E
  [Debugging]      xtrace        X verbose    X extdebug
  [Interactive]    emacs           vi
  [Compat]         eval_unsafe_arith            ignore_flags_not_impl
                   ignore_shopt_not_impl
