Undoing specific revisions in Subversion

Question

Suppose I have a set of commits in a repository folder...

123 (250 new files, 137 changed files, 14 deleted files)
122 (150 changed files)
121 (renamed folde         


        

Answer 1

To undo revisions 118 and 120:

svn up -r HEAD       # get latest revision
svn merge -c -120 .  # undo revision 120
svn merge -c -118 .  # undo revision 118
svn commit           # after solving problems (if any)

Also see the description in Undoing changes.

Note the minus in the -c -120 argument. The -c (or --change) switch is supported since Subversion 1.4, older versions can use -r 120:119.