使用批处理回声有特殊字符 [英] using batch echo with special characters

问题描述

这也许很容易，但有过网没有答案吧。我想呼应通过批处理一个XML行成一个文件，但它误解了XML结束标记重定向>。行如下：

 回声＆LT; XML版本=1.0编码=UTF-8＆GT？; ＆GT;将myfile.xml
 

有没有办法给一个提示一批解析器不跨preT特殊字符串？我用双引号，但其写入文件，以及！该文件应该是这样的回应后：

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
 

解决方案

您可以逃脱shell元字符与 ^ ：

 回音^＆LT; XML版本=1.0编码=UTF-8^＆GT？; ＆GT;将myfile.xml
 

请注意，由于回声是一个shell内置它不遵循有关报价通常约定，所以只引用参数将输出的报价，而不是删除它们

This maybe really easy but there were no answers for it over the net. I want to echo a XML line via batch into a file but it misunderstands the XML closing tag for redirection ">". The line is as follows:

echo <?xml version="1.0" encoding="utf-8" ?> > myfile.xml

is there any way to give a hint to batch parser not to interpret a special string? I used double-quotes but it writes them to the file as well! The file should look like this after echo:

<?xml version="1.0" encoding="utf-8" ?>

解决方案

You can escape shell metacharacters with ^:

echo ^<?xml version="1.0" encoding="utf-8" ?^> > myfile.xml

Note that since echo is a shell built-in it doesn't follow the usual conventions regarding quoting, so just quoting the argument will output the quotes instead of removing them.

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