EOS developer on MacOS - Create wallets, accounts and save in the local EOS blockchain

eos branch: dawn-v4.2.0

Starting EOS :
Terminal
$ cd ~/Documents/eos // cd to the directory where all EOS files are
$ nodeos -e -p eosio --plugin eosio::chain_api_plugin --plugin eosio::history_api_plugin --contracts-console //starts EOS

error message: 1671409ms thread-0 producer_plugin.cpp:627 start_block ] Not producing block because the irreversible block is too old [age:249104s, max:1800s]

Solution
adding --max-irreversible-block-age 99999999 at the end of the commande:
$ nodeos -e -p eosio --plugin eosio::chain_api_plugin --plugin eosio::history_api_plugin --contracts-console --max-irreversible-block-age 99999999

NEXT
$ cleos wallet create -n mywallet

Got a new wallet called mywallet

$ cleos create key

Generate a new pair of keys (public and private)

$ cleos wallet import {private key} -n mywallet

Linked the wallet mywallet to the generated account keys

$ cleos create account eosio my.eos.acc {public key} {public key}

Created a new account linked to my new wallet and saved in the EOS local blockchain

Now you can start using EOS with your newly created wallet and account