$ mkdir FCKEditor
davey@amun:/Library/WebServer/Documents/mysoftware-5.2.x/shared/htdocs/inc$ svn add FCKEditor
A         FCKEditor
davey@amun:/Library/WebServer/Documents/mysoftware-5.2.x/shared/htdocs/inc$ svn ci FCKEditor -m "* Add FCKEditor point for svn:externals"
Adding         FCKEditor

Committed revision 8423.
davey@amun:/Library/WebServer/Documents/mysoftware-5.2.x/shared/htdocs/inc$ svn propset svn:externals "FCKEditor https://svn-util.digarc.com/fckeditor/branches/artemis" .
property 'svn:externals' set on '.'
davey@amun:/Library/WebServer/Documents/mysoftware-5.2.x/shared/htdocs/inc$ svn ci -m "* Add svn:externals property for FCKEditor"
davey@amun:/Library/WebServer/Documents/mysoftware-5.2.x/shared/htdocs/inc$ svn up

Fetching external item into 'FCKEditor'
svn: Working copy 'FCKEditor' locked
svn: run 'svn cleanup' to remove locks (type 'svn help cleanup' for details)