How to undo a commit in SVN? [duplicate]

This question alre开发者_如何学编程ady has answers here: Closed 12 years ago.

Possible Duplicate:

Subversion: Retract Accidental Checkin

How do you undo a commit of a file in SVN?

---

svn merge -r COMMITTED:PREV .

or

svn merge -c -1708 path/to/file