git two dashes意味着没有更多的选项 [英] git two dashes means with no more options

问题描述

我正在学习通过代码学校尝试git，并学习单元1.17使用命令行取消它

  git checkout  -  octocat.txt 
  

和octocat .txt是一个文件，它解释了两条虚线是

它只是保证命令行没有更多的选项$ ' - '后的b $ b。这样，如果碰巧有一个名为
的分支为octocat.txt，它仍然会恢复文件，而不是切换到
同名的分支。

blockquote>

但我无法理解的是，没有选项意味着什么？
由于之后没有选择，为什么它可以通过文件与分支区分开来？

解决方案

- 意味着停止处理选项，即使看起来像一个选项，例如 --help ，它应该作为常规参数处理，如文件名。

实际上可以添加或删除被称为 --help 的文件，否则这将是不可能的。

在git语法， - 通常也用于指定受影响的文件。例如， git checkout something 可能意味着名为的东西的结帐分支或称为的东西。如果您使用 git checkout - 某些，它总是意味着文件，而不是分支。

I am learning the try git by code school, and to the unit 1.17 Undo it use the command line

git checkout -- octocat.txt

and the octocat.txt is a file then and it explain that the two dash lines is

It's simply promising the command line that there are no more options after the '--'. This way if you happen to have a branch named octocat.txt, it will still revert the file, instead of switching to the branch of the same name.

but what I cannot understand is that what does it means by no options? And since there are no options after, why it can distinguish it by file from branch?

解决方案

-- means stop processing options, and even if something does look like an option, e.g. --help, it should be treated as usual parameter, like file name instead.

Using this syntax, you can actually add or remove file which is called say --help, which would be impossible otherwise.

In git syntax, -- is also usually used to specify affected files. For example, git checkout something could mean either checkout branch named something or file called something. If you use git checkout -- something, it always means file, not branch.

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