Installed memcached via homebrew, how to start and stop server?

When you installed it, it put a file named homebrew.mxcl.memcached.plist in /usr/local/Cellar/memcached/$version/; you copy that file into ~/Library/LaunchAgents and then tell launchd to start it with launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.memcached.plist.

If you were watching the console carefully during the brew install command, it should have said something about doing these exact steps. If you run brew info it'll re-print this information, e.g. brew info memcached.

You should probably read https://docs.brew.sh/Manpage -- it has more useful documentation including the brew remove command which will remove the package if you decide you don't want it.

Additionally you can run "brew info", if you have forgotten about the instructions.

→ brew info memcached
memcached 1.4.7
http://memcached.org/
Depends on: libevent
/usr/local/Cellar/memcached/1.4.6 (8 files, 156K)

You can enable memcached to automatically load on login with:
mkdir -p ~/Library/LaunchAgents
cp /usr/local/Cellar/memcached/1.4.7/com.danga.memcached.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/com.danga.memcached.plist

Or start it manually:
    /usr/local/bin/memcached

Add "-d" to start it as a daemon.

http://github.com/mxcl/homebrew/commits/master/Library/Formula/memcached.rb

1. Brew used to have a command brew services (https://thoughtbot.com/blog/starting-and-stopping-background-services-with-homebrew), now deprecated. Instead, to get always-correct advice, run this command:

   brew info memcached
   

2. Via telnet: telnet localhost 11211

   See also What are some useful tips/tools for monitoring/tuning memcached health?

3. brew remove memcached