Bash条件循环问题Y或y ==＆gt;是N或n ==＆gt; NO

Question

所以问题是我没有得到所需的输出。在问题陈述中需要一些帮助，因为我是BashScript的新手!!

Answer 1

-eq is for numeric comparisons and all of the strings YES, Y, N and NO evaluate to zero. Hence they'll all match each other.

You should be using = rather than -eq.

However, you can also use regular expressions in bash with something like:

[[ $input =~ [Yy] ]]

That seems much more readable to me.