问题
if I use git command like this:
git checkout -- .
I know its effect is to discard all unstaged files everywhere.
Can anyone tell me what is the meaning of the dot sign (.) in this command?
回答1:
The dot stands for the current directory. The command you've mentioned means: Do a git checkout of the current directory (recursively). The double-dashes separate options from filespecs (like .).
回答2:
The dot (.) refers to the current working directory.
You are asking git to checkout the current directory from the checked out branch. The double-dash is used to separate references, such as master or HEAD from file paths, such as myfile.cpp.
来源：https://stackoverflow.com/questions/8275452/dot-signs-meaning-in-git-checkout-command