如何使用sed插入包含斜杠的字符串? [英] How to insert strings containing slashes with sed?

问题描述

我有一个本地开发的 Visual Studio 项目.代码文件必须部署到远程服务器.唯一的问题是它们包含的 URL 是硬编码的.

I have a Visual Studio project, which is developed locally. Code files have to be deployed to a remote server. The only problem are the URLs they contain, which are hard-coded.

该项目包含 URL，例如 ?page=one.为了使链接在服务器上有效，它必须是 /page/one .

The project contains URLS such as ?page=one. For the link to be valid on the server, it must be /page/one .

我决定在部署前用 sed 替换我代码文件中的所有 URL，但我被斜线卡住了.

I've decided to replace all URLS in my code files with sed before deployment, but I'm stuck on slashes.

我知道这不是一个很好的解决方案，但它很简单，可以为我节省很多时间.我必须替换的字符串总数少于 10.必须检查的文件总数约为 30.

I know this is a not a pretty solution, but it's simple and would save me a lot of time. The total number of strings I have to replace is fewer than 10. Total number of files which have to be checked is ~30.

描述我的情况的示例如下:

Example describing my situation is below:

我正在使用的命令:

sed -f replace.txt < a.txt > b.txt

replace.txt 包含所有字符串:

s/?page=one&/pageone/g
s/?page=two&/pagetwo/g
s/?page=three&/pagethree/g

a.txt:

?page=one&
?page=two&
?page=three&

运行 sed 命令后 b.txt 的内容:

Content of b.txt after I run my sed command:

pageone
pagetwo
pagethree

我希望 b.txt 包含的内容:

What I want b.txt to contain:

/page/one
/page/two
/page/three

推荐答案

最简单的方法是在搜索/替换行中使用不同的分隔符，例如:

The easiest way would be to use a different delimiter in your search/replace lines, e.g.:

s:?page=one&:pageone:g

您可以使用任何不属于任一字符串的字符作为分隔符.或者，您可以使用反斜杠将其转义:

You can use any character as a delimiter that's not part of either string. Or, you could escape it with a backslash:

s/\//foo/

将 / 替换为 foo.如果您不知道替换字符串中可能出现哪些字符(例如，如果它们是 shell 变量)，您可能希望使用转义反斜杠.

Which would replace / with foo. You'd want to use the escaped backslash in cases where you don't know what characters might occur in the replacement strings (if they are shell variables, for example).

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