ex31.sh

来自「BASH Shell 编程 经典教程 《高级SHELL脚本编程》中文版」· Shell 代码 · 共 17 行

#!/bin/bash

PS3='Choose your favorite vegetable: ' # 设置提示符字串.

echo

select vegetable in "beans" "carrots" "potatoes" "onions" "rutabagas"
do
  echo
  echo "Your favorite veggie is $vegetable."
  echo "Yuck!"
  echo
  break  # 如果这里没有 'break' 会发生什么?
done

exit 0