Well, that's not how you create a geth account.
Please follow the below commands one by one to create a new account:
$ geth account new
$ geth account new --password /path/to/passwdfile
$ geth account new --password <(echo $mypassword)
It Creates a new account and prints the address.
Now on the console, use:
Now you will be prompted for a password.
The account is saved in an encrypted format. You must remember this passphrase to unlock your account in the future