blocks|key|1572344|text|tr+-d+'\r'+<+infile+>+outfile|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1572345|请参阅tr(1)|unstyled|offset|length|1572346|entityMap|0|LINK|mutability|MUTABLE|url|http://www.opengroup.org/onlinepubs/009695399/utilities/tr.html^0|0|3|5|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>tr -d '\r' &lt; infile &gt; outfile
</code></pre>

See <a href="http://www.opengroup.org/onlinepubs/009695399/utilities/tr.html" rel="noreferrer">tr(1)</a>

blocks|key|1357239|text|老派：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1357240|tr+-d+'\r'+<+filewithcarriagereturns+>+filewithoutcarriagereturns|code-block|syntax|javascript|1357241|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Old School:

<pre><code>tr -d '\r' &lt; filewithcarriagereturns &gt; filewithoutcarriagereturns
</code></pre>

blocks|key|1572281|text|有一个名为dos2unix的实用程序存在于许多系统上，并且可以很容易地安装在大多数系统上。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1572282|entityMap|0|LINK|mutability|MUTABLE|url|http://www.linuxcommand.org/man_pages/dos2unix1.html^0|5|8|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

There's a utility called <a href="http://www.linuxcommand.org/man_pages/dos2unix1.html" rel="noreferrer">dos2unix</a> that exists on many systems, and can be easily installed on most.

blocks|key|1572335|text|sed+-i+s/\r//+<filename>或诸如此类的东西；请参阅man+sed或web上有关使用sed的丰富信息。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1572336|需要指出的一件事是上面“回车符”的确切含义；如果您真的指的是单个控制字符“回车符”，那么上面的模式是正确的。如果您的意思是更一般的CRLF+(回车符和换行符，这是在Windows下实现换行符的方式)，那么您可能希望替换\r\n。Linux/Unix中的裸换行符(换行符)是\n。|1572337|entityMap^0|0|O|10|7|1G|3|0|31|4|3S|2|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

<code>sed -i s/\r// &lt;filename&gt;</code> or somesuch; see <code>man sed</code> or the wealth of information available on the web regarding use of <code>sed</code>.

One thing to point out is the precise meaning of "carriage return" in the above; if you truly mean the single control character "carriage return", then the pattern above is correct. If you meant, more generally, CRLF (carriage return and a line feed, which is how line feeds are implemented under Windows), then you probably want to replace <code>\r\n</code> instead. Bare line feeds (newline) in Linux/Unix are <code>\n</code>.

blocks|key|1572426|text|如果您是Vi用户，您可以打开该文件并使用以下命令删除回车符：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1572427|:%25s/\r//g|code-block|syntax|javascript|1572428|或使用|1572429|:1,$+s/%5EM//|1572430|请注意，您应该先按ctrl-v，然后按ctrl-m，然后键入%5EM。|1572431|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

If you are a Vi user, you may open the file and remove the carriage return with:

<pre><code>:%s/\r//g
</code></pre>

or with 

<pre><code>:1,$ s/^M//
</code></pre>

Note that you should type ^M by pressing ctrl-v and then ctrl-m.

blocks|key|1572642|text|再一次的解决方案...因为总会有另外一个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1572643|perl+-i+-pe+'s/\r//'+filename|code-block|syntax|javascript|1572644|它很好，因为它在我使用过的所有unix/linux版本中都能正常工作。|1572645|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Once more a solution... Because there's always one more:

<pre><code>perl -i -pe 's/\r//' filename
</code></pre>

It's nice because it's in place and works in every flavor of unix/linux I've worked with.

blocks|key|1357395|text|其他人推荐dos2unix，我也强烈推荐。我只是提供更多细节。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1357396|如果已安装，请跳到下一步。如果还没有安装，我建议通过yum安装它，如下所示：|1357397|yum+install+dos2unix|code-block|syntax|javascript|1357398|然后你可以像这样使用它：|1357399|dos2unix+fileIWantToRemoveWindowsReturnsFrom.txt|1357400|entityMap^0|5|8|0|Q|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|10|8|@]|D|@]|E|$K|L]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

Someone else recommend <code>dos2unix</code> and I strongly recommend it as well. I'm just providing more details.

If installed, jump to the next step. If not already installed, I would recommend installing it via <code>yum</code> like:

<pre><code>yum install dos2unix
</code></pre>

Then you can use it like:

<pre><code>dos2unix fileIWantToRemoveWindowsReturnsFrom.txt
</code></pre>

blocks|key|1572481|text|如果您使用的操作系统(如OS+X)没有dos2unix命令，但有Python解释器(版本为2.5%2B)，则此命令相当于dos2unix命令：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1572482|python+-c+"import+sys;+import+fileinput;+sys.stdout.writelines(line.replace('\r',+'\n')+for+line+in+fileinput.input(mode='rU'))"|code-block|syntax|javascript|1572483|它既可以处理命令行上的命名文件，也可以处理管道和重定向，就像dos2unix一样。如果将此行添加到~/.bashrc文件(或其他shells的等效配置文件)中：|1572484|alias+dos2unix="python+-c+\"import+sys;+import+fileinput;+sys.stdout.writelines(line.replace('\r',+'\n')+for+line+in+fileinput.input(mode='rU'))\""|1572485|..。下次登录(或在当前会话中运行source+~/.bashrc+)时，您将能够以与其他示例相同的方式在命令行中使用dos2unix名称。|1572486|entityMap^0|J|8|1M|8|0|0|U|8|0|0|H|G|1N|8|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|12|8|@$9|13|A|14|B|C]|$9|15|A|16|B|C]]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|17|8|@]|D|@]|E|$]]]|R|$]]

If you're using an OS (like OS X) that doesn't have the <code>dos2unix</code> command but does have a Python interpreter (version 2.5+), this command is equivalent to the <code>dos2unix</code> command:

<pre><code>python -c "import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))"
</code></pre>

This handles both named files on the command line as well as pipes and redirects, just like <code>dos2unix</code>. If you add this line to your ~/.bashrc file (or equivalent profile file for other shells):

<pre><code>alias dos2unix="python -c \"import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))\""
</code></pre>

... the next time you log in (or run <code>source ~/.bashrc</code> in the current session) you will be able to use the <code>dos2unix</code> name on the command line in the same manner as in the other examples.

blocks|key|1357434|text|事情是这样的，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1357435|%250d是回车符。使其与Unix兼容。我们需要使用下面的命令。|offset|length|style|CODE|1357436|dos2unix+fileName.extension+fileName.extension|1357437|entityMap^0|0|0|3|0|0|1A|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@$D|Q|E|R|F|G]]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

Here is the thing,

<code>%0d</code> is the carriage return character. To make it compatabile with Unix. We need to use the below command.

<code>dos2unix fileName.extension fileName.extension</code>

blocks|key|1572520|text|您可以简单地执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1572521|$+echo+$(cat+input)+>+output|code-block|syntax|javascript|1572522|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

you can simply do this :

<pre><code>$ echo $(cat input) &gt; output
</code></pre>

blocks|key|1357623|text|对于UNIX...我注意到dos2unix从我的UTF-8文件中删除了Unicode头文件。在git+bash+(Windows)下，以下脚本似乎工作得很好。它使用sed。注意:它只删除行尾的回车，并保留Unicode标头。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1357624|#!/bin/bash

inOutFile="$1"
backupFile="${inOutFile}~"
mv+--verbose+"$inOutFile"+"$backupFile"
sed+-e+'s/\015$//g'+<"$backupFile"+>"$inOutFile"|code-block|syntax|javascript|1357625|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For UNIX... I've noticed dos2unix removed Unicode headers form my UTF-8 file. Under git bash (Windows), the following script seems to work nicely. It uses sed. Note it only removes carriage-returns at the ends of lines, and preserves Unicode headers.

<pre><code>#!/bin/bash

inOutFile="$1"
backupFile="${inOutFile}~"
mv --verbose "$inOutFile" "$backupFile"
sed -e 's/\015$//g' &lt;"$backupFile" &gt;"$inOutFile"
</code></pre>

blocks|key|1572843|text|如果你运行的是X环境，并且有一个合适的编辑器(visual+studio代码)，那么我将遵循下面的建议：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1572844|Visual+Studio+Code:+How+to+show+line+endings|offset|length|1572845|只需转到屏幕的右下角，visual+studio代码将向您显示文件编码和行尾约定，然后是文件，只需简单地单击一下，您就可以切换这些内容。|1572846|只需在linux环境中使用可视化代码作为notepad%2B%2B的替代品，您就可以使用它了。|1572847|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/39525417/visual-studio-code-how-to-show-line-endings^0|0|0|18|0|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@$D|T|E|U|1|V]]|A|$]]|$1|F|3|G|5|6|7|W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

If you are running an X environment and have a proper editor (visual studio code), then I would follow the reccomendation:

<a href="https://stackoverflow.com/questions/39525417/visual-studio-code-how-to-show-line-endings">Visual Studio Code: How to show line endings</a>

Just go to the bottom right corner of your screen, visual studio code will show you both the file encoding and the end of line convention followed by the file, an just with a simple click you can switch that around.

Just use visual code as your replacement for notepad++ on a linux environment and you are set to go.

blocks|key|1572865|text|cat+input.csv+%7C+sed+'s/\r/\n/g'+>+output.csv|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1572866|对我很管用|1572867|entityMap^0|0|18|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

<code>cat input.csv | sed 's/\r/\n/g' &gt; output.csv</code>
worked for me

blocks|key|1357604|text|我已经使用了python，这是我的代码；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1357605|end1='/home/.../file1.txt'
end2='/home/.../file2.txt'
with+open(end1,+"rb")+as+inf:
+++++with+open(end2,+"w")+as+fixed:
++++++++for+line+in+inf:
++++++++++++line+=+line.replace("\n",+"")
++++++++++++line+=+line.replace("\r",+"")
++++++++++++fixed.write(line)|code-block|syntax|javascript|1357606|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I've used python for it, here my code;

<pre><code>end1='/home/.../file1.txt'
end2='/home/.../file2.txt'
with open(end1, "rb") as inf:
 with open(end2, "w") as fixed:
 for line in inf:
 line = line.replace("\n", "")
 line = line.replace("\r", "")
 fixed.write(line)
</code></pre>

blocks|key|1572861|text|我创建这个shell脚本是为了删除\r字符。它可以在solaris和red-hat中工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1572862|#!/bin/ksh

LOCALPATH=/Any_PATH

for+File+in+`ls+${LOCALPATH}`
do
+++ARCACT=${LOCALPATH}/${File}
+++od+-bc+${ARCACT}%7Csed+-n+'p;n'%7Csed+'s/015/012/g'%7Cawk+'{$1="";+print+$0}'%7Csed+'s/+/\\/g'%7Cawk+'{printf+$0;}'>${ARCACT}.TMP
+++printf+"`cat+${ARCACT}.TMP`"%7Csed+'/%5E$/d'>${ARCACT}
+++rm+${ARCACT}.TMP
done

exit+0|code-block|syntax|javascript|1572863|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I made this shell-script to remove the \r character. It works in solaris and red-hat:

<pre><code>#!/bin/ksh

LOCALPATH=/Any_PATH

for File in `ls ${LOCALPATH}`
do
 ARCACT=${LOCALPATH}/${File}
 od -bc ${ARCACT}|sed -n 'p;n'|sed 's/015/012/g'|awk '{$1=""; print $0}'|sed 's/ /\\/g'|awk '{printf $0;}'&gt;${ARCACT}.TMP
 printf "`cat ${ARCACT}.TMP`"|sed '/^$/d'&gt;${ARCACT}
 rm ${ARCACT}.TMP
done

exit 0
</code></pre>

What is the simplest way to remove all the carriage returns <code>\r</code> from a file in Unix?

问删除Unix中的回车
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回答 15

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