[root@localhost nemo]# devel-su -p vcardconverter --export /home/nemo/Documents/contact.vcf
Password:
Enjoy your privileges.
[W] ContactsEngine::ContactsEngine:845 - The 'mergePresenceChanges' option has not been configured - presence changes will only be reported via ContactManagerEngine::contactsPresenceChanged()
[D] main:162 - Exporting 0 contacts
[D] main:167 - Wrote 0 contacts