$ brew install redis
==> Downloading https://homebrew.bintray.com/bottles/redis-4.0.6.high_sierra.bottle.ta
######################################################################## 100.0%
==> Pouring redis-4.0.6.high_sierra.bottle.tar.gz
==> Caveats
To have launchd start redis now and restart at login:
  brew services start redis
Or, if you don't want/need a background service you can just run:
  redis-server /usr/local/etc/redis.conf
==> Summary
🍺  /usr/local/Cellar/redis/4.0.6: 13 files, 2.8MB

$ brew info redis
redis: stable 4.0.6 (bottled), HEAD
Persistent key-value database, with built-in net interface
https://redis.io/
/usr/local/Cellar/redis/4.0.6 (13 files, 2.8MB) *
  Poured from bottle on 2017-12-16 at 12:00:58
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/redis.rb
==> Options
--with-jemalloc
	Select jemalloc as memory allocator when building Redis
--HEAD
	Install HEAD version
==> Caveats
To have launchd start redis now and restart at login:
  brew services start redis
Or, if you don't want/need a background service you can just run:
  redis-server /usr/local/etc/redis.conf

$ redis-server 

$ redis-cli ping
PONG

$ brew uninstall redis
$ rm ~/Library/LaunchAgents/homebrew.mxcl.redis.plist