bash curl: (3) 在 URL 中发现非法字符：${...%?} 不起作用
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curl: (3) Illegal characters found in URL : ${...%?} doesn't work
提问by Hélo?se Chauvel
I've been looking for a solution to my problem all the morning, especially in the 4 posts in https://stackoverflow.comhaving the same error name in their title but the solutions don't work for me.
我整个上午都在寻找解决我的问题的方法，尤其是在https://stackoverflow.com中标题中具有相同错误名称的 4 个帖子中，但这些解决方案对我不起作用。
I want to do several simple cURL requests put together in a Bash script. The request at the end of the file always works, whatever request it is. However the requests before return an error:
我想在 Bash 脚本中执行几个简单的 cURL 请求。文件末尾的请求始终有效，无论它是什么请求。但是之前的请求返回错误：
curl: (3) Illegal characters found in URL
curl: (3) 在 URL 中发现非法字符
I am pretty sure that it has something to do with the carriage return in my file. But I don't know how to deal with it. As I show in the picture below I tried to use ${url1%?}. I also tried ${url1%$'\r'}, but it doesn't change anything.
我很确定它与我的文件中的回车有关。但我不知道如何处理。如下图所示，我尝试使用${url1%?}. 我也试过${url1%$'\r'}，但它没有改变任何东西。
Screenshot of file + results in terminal:
终端中文件 + 结果的屏幕截图：
Any ideas?
有任何想法吗？
回答by Socowi
If your lines end with \r, stripping away the \rfrom the $urlwon't work, because the line
如果您的行以 结尾\r，\r则从 中剥离$url将不起作用，因为该行
curl -o NUL "{url1%?}
also ends with a \r, which is appended to the url argument again.
也以 a 结尾\r，它再次附加到 url 参数。
Comment out the \r, that is
注释掉\r，即
url1="www.domain.tld/file"
curl -o NUL "${url1%?}" #
or
或者
url1="www.domain.tld/file" #
curl -o NUL "$url1" #
or convert the file before executing it
或在执行之前转换文件
tr -d '\r' < test.sh > testWithoutR.sh
