linux - [ :Unexpected operator in shell programming

Question

这个问题在这里已经有了答案:

Unexpected operator error [duplicate] (4 个回答)

关闭 6年前。

我的代码:

    #!/bin/sh
    #filename:choose.sh
    read choose
    [ "$choose" == "y" -o "$choose" == "Y" ] && echo "Yes" && exit 0
    [ "$choose" == "n" -o "$choose" == "N" ] && echo "No"  && exit 0
    echo "Wrong Input" && exit 0

但是当我执行时

    sh ./choose.sh

终端提示我

   [: 4: n: :Unexpected operator
   [: 5: n: :Unexpected operator

我的 bash 脚本有什么错误吗？谢谢!

Answer 1

您的 bash 脚本没有错误。但是您使用 sh 执行它，它的语法不太广泛；)

所以，改为运行 bash ./choose.sh :)