I need to find a commit in Git by a given hash, SHA. For example, if I have the "a2c25061" hash, and I need to get the author and the committer of this commit. What is the command to get that?
To find a commit using Sha can be achieved by using git show command:
git show <sha-id>
For your case, it will be
git show a2c25061
To get only about the commit, not about the diff you can use --stat option as well.