[ :shell 编程中的意外操作符 [英] [ :Unexpected operator in shell programming

问题描述

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

    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！

Is there any mistake in my bash script? Thanks!

推荐答案

bash 脚本没有错误.但是您正在使用 sh 执行它，它的语法不太广泛;)

There is no mistake in your bash script. But you are executing it with sh which has a less extensive syntax ;)

所以，改为运行 bash ./choose.sh :)

So, run bash ./choose.sh instead :)

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