先展示下效果，习惯了命令行操作，突然看到有这么一个交互式操作命令，有点眼前一亮。

主要代码：

#!/bin/bash
OPTION=$(whiptail --title "选择菜单 - Abul" --menu "Choose your option" 15 40 4 \
"1" "ALL" \
"2" "A->B" \
"3" "B->C" \
"4" "C-D"  3>&1 1>&2 2>&3)
status=$?
if [ $status = 0 ]; then
    echo "Your chosen option:" $OPTION
else
    echo "You chose Cancel."
fi

取到选择的值，后续就可以做一系列的操作，命令也比较简单，将菜单项替换成自己的即可。
当然whiptail还有很多交互式功能，比如：

• 消息对话框 msgbox
  whiptail --title "Hello" --msgbox "Are you OK?" 15 30
• yesno对话框
  whiptail --title "Hello" --yesno "Are you OK?" 10 30
• 输入框inputbox
  whiptail --title "Hello" --inputbox "What is Your Name?" 10 30
• 密码框passwordbox
  whiptail --title "Hello" --passwordbox "What is Your Password?" 10 30
• 单选框radiolist

  whiptail --title "Hello" --radiolist "Choice One." 15 30 4 \
  "A" "Abul" OFF \
  "B" "Blue" OFF \
  "C" "Camille" OFF \
  "D" "Dabao" OFF

  
• 多选框checklist

  whiptail --title "Hello" --checklist "Choice One." 10 30 4 \
  "A" "Abul" OFF \
  "B" "Blue" OFF \
  "C" "Camille" OFF \
  "D" "Dabao" OFF

  
• 进度条gauge

  #!/bin/bash
  {
    for ((i = 0 ; i <= 100 ; i+=20)); do
        sleep 1
        echo $i
    done
  } | whiptail --gauge "Hold on,loading..." 6 60 0