如何编写 Bash 脚本来显示菜单、接受用户输入和显示数据？
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How can I write a Bash Script to display a menu, accept user input and display data?
提问by KK.
I want to write Bash Script with User Input for my assignment called "book store service". Firstly, it has option menu like "add new book name " "author name" "remove book" "update" "search" "show book list" "Exit". If I choice option 1, I've got to input new book's name. How could I write the user input and display output data when I choice "show book list" option. I've got trouble with this Assignment. Pls someone help me to clear about this, that would be really helpful and thankful to all of you.
我想为我的名为“书店服务”的作业编写带有用户输入的 Bash 脚本。首先，它有“添加新书名”“作者名”“删除书”“更新”“搜索”“显示书单”“退出”等选项菜单。如果我选择选项 1，我必须输入新书的名称。当我选择“显示书籍列表”选项时，如何编写用户输入并显示输出数据。我在这个作业上遇到了麻烦。请有人帮助我澄清这一点，这对你们所有人都非常有帮助和感谢。
回答by Paused until further notice.
Take a look at the selectstatement. It allows you to create a menu.
看看select声明。它允许您创建菜单。
PS3="Please choose an option "
select option in go stay wait quit
do
case $option in
go)
echo "Going";;
stay|wait)
echo "Standing by";;
quit)
break;;
esac
done
Which would look like:
看起来像：
1) go
2) stay
3) wait
4) quit
Please choose an option
Edit:
编辑：
One of your options might prompt for user input:
您的选项之一可能会提示用户输入：
read -rp "Enter a phrase: " phrase
echo "The phrase you entered was $phrase"
回答by dm76
You might want to check out Whiptailor Dialogwith which one can make graphical interfaces inside the terminal.
您可能想查看Whiptail或Dialog，用它们可以在终端内制作图形界面。
Hereand hereis a good resources on how to use whiptail.
And the answers to thisquestion is a good example of how to use Dialog
而这个问题的答案是如何使用 Dialog 的一个很好的例子
回答by Frank
Here is a code example that shows how to read user input: http://tldp.org/LDP/abs/html/internal.html#READR
这是一个代码示例，展示了如何读取用户输入：http: //tldp.org/LDP/abs/html/internal.html#READR
You can also use CLI arguments:
您还可以使用 CLI 参数：
test.sh
测试文件
echo
CLI:
命令行界面：
$ ./test.sh testinput
testinput
