bash 使用文件的内容使用 SED 替换字符串
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/6790631/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Use the contents of a file to replace a string using SED
提问by Eric Brotto
What would be the sed command for mac shell scripting that would replace all iterations of string "fox" with the entire string content of myFile.txt.
什么是 mac shell 脚本的 sed 命令，它将用 myFile.txt 的整个字符串内容替换字符串“fox”的所有迭代。
myFile.txt would be html content with line breaks and all kinds of characters. An example would be
myFile.txt 将是带有换行符和各种字符的 html 内容。一个例子是
</div>
</div>
<br>
<div id="container2">
<div class="question" onclick="javascript:show('answer2')";>
Thanks!
谢谢！
EDIT 1
编辑 1
This is my actual code:
这是我的实际代码：
sed -i.bkp '/Q/{
s/Q//g
r /Users/ericbrotto/Desktop/question.txt
}' $file
When I run it I get:
当我运行它时，我得到：
sed in place editing only works for regular files.
And in my files the Q is replaced by a ton of chinese characters (!). Bizarre!
在我的文件中，Q 被大量汉字 (!) 替换。奇怪！
回答by brandizzi
You can use the rcommand. When you find a 'fox' in the input...
您可以使用该r命令。当您在输入中找到“狐狸”时...
/fox/{
...replace it for nothing...
......无所事事地更换它......
s/fox//g
...and read the input file:
...并读取输入文件：
r f.html
}
If you have a file such as:
如果您有一个文件，例如：
$ cat file.txt
the
quick
brown
fox
jumps
over
the lazy dog
fox dog
the result is:
结果是：
$ sed '/fox/{
s/fox//g
r f.html
}' file.txt
the
quick
brown
</div>
</div>
<br>
<div id="container2">
<div class="question" onclick="javascript:show('answer2')";>
jumps
over
the lazy dog
dog
</div>
</div>
<br>
<div id="container2">
<div class="question" onclick="javascript:show('answer2')";>
EDIT: to alter the file being processed, just pass the -iflag to sed:
编辑：要更改正在处理的文件，只需将-i标志传递给 sed：
sed -i '/fox/{
s/fox//g
r f.html
}' file.txt
Some sed versions (such as my own one) require you to pass an extension to the -iflag, which will be the extension of a backup file with the old content of the file:
某些 sed 版本（例如我自己的版本）要求您将扩展名传递给-i标志，这将是具有文件旧内容的备份文件的扩展名：
sed -i.bkp '/fox/{
s/fox//g
r f.html
}' file.txt
And here is the same thing as a one liner, which is also compatible with Makefile
这是与单衬相同的东西，它也与 Makefile 兼容
sed -i -e '/fox/{r f.html' -e 'd}'
回答by buddyp450
Ultimately what I went with which is a lot simpler than a lot of solutions I found online:
最终，我采用的方法比我在网上找到的许多解决方案要简单得多：
str=xxxx
sed -e "/$str/r FileB" -e "/$str/d" FileA
Supports templating like so:
支持这样的模板：
str=xxxx
sed -e "/$str/r $fileToInsert" -e "/$str/d" $fileToModify
