SVN commands

• Check information on which revision you have
  svn info
• Check information on 000 revision
  svn info -r 000
  
• Update to a specific revision (000)
  svn update (up) -r 000
  
• Compare two revisions (A and B) or even more
  svn diff -r A:B
• Compare one file of current working copy with old revision(000)
  svn diff -r 000 filename
• Undo a commit
  svn merge -c 000 .
  svn commit