svn propedit — Edit the property of one or more items under version control.
svn propedit PROPNAME PATH...
svn propedit PROPNAME --revprop -r REV [URL]
Edits one or more properties using your favorite editor. The first form edits versioned properties in your working copy, while the second edits unversioned remote properties on a repository revision.
pedit, pe
Working copy, repository only if operating on a URL
Only if operating on a URL
--revision (-r) REV --revprop --encoding ENC
svn propedit makes it easy to modify properties that have multiple values:
$ svn propedit svn:keywords foo.c <svn will launch your favorite editor here, with a buffer open containing the current contents of the svn:keywords property. You can add multiple values to a property easily here by entering one value per line.> Set new value for property `svn:keywords' on `foo.c'