How to add share folder in svn(propset)

*First get Properties already exists
 bash-3.2$ svn pg  svn:externals
 
 anidata              -r 2253    ^/lib/js/anidata/trunk
 audio                -r 24051   ^/lib/js/audio/trunk
 naturalsound         -r 26164   ^/lib/js/naturalsound/trunk
 xml                  -r 22437   ^/lib/js/xml/trunk
*second set Properties(exists and new)
 bash-3.2$ svn ps svn:externals '
 > anidata              -r 2253    ^/lib/js/anidata/trunk
 > audio                -r 24051   ^/lib/js/audio/trunk
 > naturalsound         -r 26164   ^/lib/js/naturalsound/trunk
 > xml                  -r 22437   ^/lib/js/xml/trunk
 > date                 -r 29111   ^/lib/js/date/trunk
 > ' .
 property 'svn:externals' set on '.'
*Third update forder
 bash-3.2$ svn up
 Fetching external item into 'anidata'
 External at revision 2253.
 
 Fetching external item into 'audio'
 External at revision 24051.
 
 Fetching external item into 'naturalsound'
 External at revision 26164.
 
 Fetching external item into 'xml'
 External at revision 22437.
 
 Fetching external item into 'date'
 A    date/DateUtility.js
  U   date
 Updated external to revision 29111.
 
 Updated to revision 34280.
* commit changes
 svn commit -m ' '