忽略sed find and replace命令中的斜杠 [英] Ignoring slashes in sed find and replace command

问题描述

我正在尝试在终端中使用sed进行查找和替换.

I'm trying to do a find and replace using sed in a terminal.

在apache配置文件中，我正在尝试替换:

Within the apache config file, I'm trying to replace:

DocumentRoot/var/www

使用

DocumentRoot/var/www/mysite.com/public_html

从命令行开始，无需使用编辑器.我想使用sed进行此操作，并且尝试了以下各种迭代:

From the command line, without using an editor. I'd like to do this with sed, and I've tried various iterations of:

sudo sed -i's/'DocumentRoot/var/www'/'DocumentRoot/var/www/mysite.com/public_html'/'/etc/apache2/sites-available/mysite.com

但是，当我这样做时会出现此错误: sed:-e表达式#1，字符14:未终止的s命令

However when doing so I get this error: sed: -e expression #1, char 14: unterminated s command

因此，路径中的斜杠上出现错误.我该如何解决?

So it's erroring on the slashes in the paths. How do I get around this?

感谢您的帮助

推荐答案

没有必要使用/作为正则表达式分隔符.当您的正则表达式包含本来需要转义的/时，可以使用#或 @ .

It isn't necessary to use / as the regex delimiter. You can use # or @ when your regular expressions contain / that you would otherwise need to escape.

sed -i s#expr1#expr2#

因此，可能是:

sudo sed -i 's#DocumentRoot /var/www#DocumentRoot /var/www/mysite.com/public_html#' /etc/apache2/sites-available/mysite.com

此外，由于您的替换参数本身包含空格，因此您需要将其用单引号引起来.

Also, as your substitution-argument itself contains spaces, you need to enclose them in single-quotes.

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