如何在批处理文件中回显换行符?

如何从批处理文件输出中插入换行符?

我想做的事情是:

echo hello\nworld

这将输出:

hello
world

当前回答

这对我来说很有效，不需要延迟扩展:

@echo off
(
echo ^<html^> 
echo ^<body^>
echo Hello
echo ^</body^>
echo ^</html^>
)
pause

它像这样写输出:

<html>
<body>
Hello
</body>
</html>
Press any key to continue . . .

2010-06-02 15:35:47

其他回答

要批量地开始新一行，你所要做的就是添加“echo[”，像这样:

echo Hi!
echo[
echo Hello!

2016-12-16 20:31:49

在这里，创建一个.bat文件，其中包含以下内容:

@echo off
REM Creating a Newline variable (the two blank lines are required!)
set NLM=^


set NL=^^^%NLM%%NLM%^%NLM%%NLM%
REM Example Usage:
echo There should be a newline%NL%inserted here.

echo.
pause

您应该会看到如下输出:

There should be a newline
inserted here.

Press any key to continue . . .

显然，您只需要REM语句之间的代码。

2008-11-06 18:43:45

经过一个不眠之夜，在阅读了这里所有的答案后，在阅读了大量的SS64 > CMD和大量的尝试和错误后，我发现:

(几乎)终极解决方案

博士TL;

．.．对于早期采用者。

Important!
Use a text editor for C&P that supports Unicode, e.g. Notepad++!

设置换行环境变量…

．.．在当前CMD会话中

Important!
*Do not* edit anything between '`=`' and '`^`'!** (There's a character in between though you don't see it. Neither here nor in edit mode. C&P works here.)

:: Sets newline variables in the current CMD session
set \n=^&echo:
set nl=^&echo:

．.．当前用户

Important!
*Do not* edit anything between (the second) '`␣`' and '`^`'!** (There's a character in between though you don't see it. Neither here nor in edit mode. C&P works here.)

:: Sets newline variables for the current user [HKEY_CURRENT_USER\Environment]
setx \n ^&echo:
setx nl ^&echo:

．.．对于本地机器

Important!
*Do not* edit anything between (the second) '`␣`' and '`^`'!** (There's a character in between though you don't see it. Neither here nor in edit mode. C&P works here.)

:: Sets newline variables for the local machine [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]
setx \n ^&echo: /m 
setx nl ^&echo: /m

为什么只是快?

它不适用于在同一打印行中没有配对(开引号和闭引号)的双引号，除非唯一未配对的双引号是文本的最后一个字符，例如:

works: ""echo %\n%...after "newline". Before "newline"...%\n%...after "newline" (paired in each printed line) works: echo %\n%...after newline. Before newline...%\n%...after newline" (the only unpaired double-quote is the last character) doesn't work: echo "%\n%...after newline. Before newline...%\n%...after newline" (double-quotes are not paired in the same printed line) Workaround for completely double-quoted texts (inspired by Windows batch: echo without new line): set BEGIN_QUOTE=echo ^| set /p !=""" ... %BEGIN_QUOTE% echo %\n%...after newline. Before newline...%\n%...after newline"

它适用于完全单引号的文本，如:

echo '%\n%...after newline. Before newline...%\n%...after newline'

附加值:转义字符

Note
There's a character after the '`=`' but you don't see it here but in edit mode. C&P works here.

:: Escape character - useful for color codes when 'echo'ing
:: See https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences#text-formatting
set ESC=

颜色参见https://imgur.com/a/EuNXEar和https://gist.github.com/gerib/f2562474e7ca0d3cda600366ee4b8a45。

第二个附加价值:轻松获取Unicode字符

通过关键字获取87,461个Unicode字符(AToW)的绝佳页面:https://www.amp-what.com/。

的原因

The version in Ken's answer works apparently (I didn't try it), but is somehow...well...you see: set NLM=^ set NL=^^^%NLM%%NLM%^%NLM%%NLM% The version derived from user2605194's and user287293's answer (without anything between '=' and '^'): set nl=^&echo: set \n=^&echo: works partly but fails with the variable at the beginning of the line to be echoed: > echo %\n%Hello%\n%World! echo & echo:Hello & echo:World! echo is ON. Hello World due to the blank argument to the first echo. All others are more or less invoking three echos explicitely. I like short one-liners.

背后的故事

为了防止set \n=^&echo:在这里的回答中显示空白(并打印其状态)，我第一次记住Alt+255用户是在Novell广泛使用网络和使用437和850等代码页的时候。但是0d255/0xFF在现在的Unicode中是大写的大写字母Y。

然后我想起来Unicode中有比普通的0d32/0x20更多的空格，但它们都被认为是空格，并导致与›␣相同的行为。

But there are even more: the zero width spaces and joiners which are not considered as whitespaces. The problem with them is, that you cannot C&P them since with their zero width there's nothing to select. So, I copied one that is close to one of them, the hair space (U+200A) which is right before the zero width space (U+200B) into Notepad++, opened its Hex-Editor plugin, found its bit representation E2 80 8A and changed it to E2 80 8B. Success! I had a non-whitespace character that's not visible in my \n environment variable.

2021-11-26 09:16:53

Ken和Jeb的解决方案效果很好。

但是新行只生成一个LF字符，我需要CRLF字符(Windows版本)。

为此，在脚本的末尾，我已经将LF转换为CRLF。

例子:

TYPE file.txt | FIND "" /V > file_win.txt
del file.txt
rename file_win.txt file.txt

2016-09-30 15:24:49

如果你需要把结果放到一个文件中，你可以使用:

(echo a & echo: & echo b) > file_containing_multiple_lines.txt

2014-09-02 00:09:25

如何在批处理文件中回显换行符?

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