Just the opposite of this question How to import a plain private key into geth or Mist? I would like to know how can I obtain the private keys of the accounts created with geth in this way:
$ geth --testnet account new
I've been looking for private key files on ~/.ethereum/keystore but there is only one file for coinbase account. No files for the rest of accounts created.
How can I obtain those missing files? Why are they missing? Thx!
I've already seen How can I import geth accounts into eth? but problem is in my system keystore files don't even exist for most of the geth accounts created, except coinbase.