What is "git checkout 0d1d7fc32 ."

Question

I found this command from here

git check out oneThing anotherThing

oneThing is commit hash

anotherThing is .

What does it do exactly?

It is unclear after reading official doc here.

Answer 1

It is the option git checkout [-p|--patch] [<tree-ish>] [--] <pathspec>… from the documentation. Your anotherThing (.) is just referencing to the current folder.

So what the command does:

git checkout with or --patch is used to restore modified or deleted paths to their original contents from the index or replace paths with the contents from a named (most often a commit-ish).