how to get a seeed wallet in bitcoin-cli? hi how to get a seed wallet in bitcoin_cli ?
I use a bitcoin-cli sethdseed
but error :invalid private key
please help me
Bitcoin core wallets are deterministic by default i.e. all private keys are derived from a seed. However you can make sure that your wallet is deterministic by running the getwalletinfo command. In the response hdseedid  will only be set if it's an HD wallet.
Bitcoin core does not encode the seed as a mnemonic of english words. To create a backup of the wallet use the backupwallet command.