pc's are attomatically add to domain.

I have hundreds for Workgroup machines, I need to add those machines to Domain,
beyond attempting one by one manually, I need alternative solution for add bulk of
workgroup machines to domain,
give me one example,these all are information,

Please suggest any methods..

client username-lab-pc
client password-P@ssw0rd
client computer name-test-pc

domain account user-TEST
           PASSWORD-P@ssw0rd
      computer name-test-pc
       domain name:test.com