Migrating from bitcoin core to bitcoind I have installed bitcoin core in my ubuntu-14.04 which is working fine.
Now I want to install bitcoind in the same Machine. Can I install bitcoind along with bitcoin core or I need to uninstall bitcoin core from my machine.

What should I do to migrate from bitcoin core to bitcoind?

Thanks in Advance.
They are identical in functionality, data store, and wallet storage. 

You can run one or the other, but not both at one time (this will throw an error if you attempt it).