期望:没有这样的变量 [英] Expect: No such variable

问题描述

我开始使用Expect.我有一个简单的脚本.但是我有一个问题.我想初始化一个带有$的第一个字符的变量:

I started using expect. I have a simple script. But I have a problem. I want to init a variable which has a $ an first character:

set mystring "$THIS_IS_MY_STRING%"

所以我得到一个错误，因为Expect期望一个变量.我该如何解决?

So I get an error, because expect expects a variable. How can I fix this?

推荐答案

使用反斜杠将所有特殊字符(例如美元符号)转义，以使它们变为

Escape any special characters such as the dollar sign by proceeding them with a backslash, so your code becomes

set mystring "\$THIS_IS_MY_STRING%"

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