fabrizioasta@MacBook-Pro-di-Fabrizio ~ % redis-cli -p 11222 --user user --pass password
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
127.0.0.1:11222> set 1 1
OK
127.0.0.1:11222> decr 1
(integer) 0
127.0.0.1:11222> decr 1
(integer) -1
127.0.0.1:11222> set hello world
OK
127.0.0.1:11222> decr hello