How to uninstall MySQL 5.6 when installed by brew on macOS? - mysql

Question

Installed MySQL by issuing the following commands:
$ brew install mysql56
$ brew services start mysql#5.6
Now I can't access it:
$ mysql -uroot
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)
Want to uninstall it and tried the following:
brew remove mysql
brew cleanup
sudo rm /usr/local/mysql
sudo rm -rf /usr/local/var/mysql
sudo rm -rf /usr/local/mysql*
sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/MySql*
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /private/var/db/receipts/*mysql*
(Restart computer)
Now work.
When I install it again and run:
brew intall mysql56
brew services start mysql#5.6
It shows:
Service `mysql#5.6` already started, use `brew services restart mysql#5.6` to restart.
But I can't find it in the process list.

Answer 1

to Stack Overflow.
I will answer this but, please be sure to check for existing questions as this has already been asked.
Try this
brew uninstall --force mysql
Or From Google First result being from CoderWall
Find Any Running Instances
ps -ax | grep mysql | grep -v grep
# OR for only the running `PID`
ps -ef | grep mysql | grep -v grep | awk '{print $2}'
# OR this If you have this on your machine, I recommend using
pgrep -f mysql
If running the kill process
kill 24024824082408 # change this number to what was returned in the grep
Save your database data
This will save your MySQL Data Folder to your desktop in a folder mysqldata.
# I backup my data from mysql to my desktop
mkdir ~/Desktop/mysqldata/
# data
cp -r /usr/local/mysql/data ~/Desktop/mysqldata
Save your MySQL Workbench Data for migration.
# MySQL workbench active sessions including the unsaved query windows
cp -r ~/Library/Application\ Support/MySQL/Workbench/sql_* ~/Desktop/mysqldata
# data this is a log containing queries that were logged at some point, more of a `just in case`
cp ~/Library/Application\ Support/MySQL/Workbench/log/sql_actions_unconnected.log ~/Desktop/mysqldata/sql_actions_unconnected.sql
# data of user snippets as people forget about this.
cp /Users/`id -un`/Library/Application\ Support/MySQL/Workbench/snippets/User\ Snippets.txt ~/Desktop/mysqldata/UserSnippets.txt
Removal and Cleanup
brew remove mysql
brew cleanup
sudo rm /usr/local/mysql
sudo rm -rf /usr/local/var/mysql
sudo rm -rf /usr/local/mysql*
sudo rm ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
sudo rm -rf /Library/StartupItems/MySQLCOM
sudo rm -rf /Library/PreferencePanes/My*
launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
rm -rf ~/Library/PreferencePanes/My*
sudo rm -rf /Library/Receipts/mysql*
sudo rm -rf /Library/Receipts/MySQL*
sudo rm -rf /private/var/db/receipts/*mysql*
Edit (if applicable) vi /etc/hostconfig and remove the line MYSQLCOM=-YES-
Restart your computer if you want to ensure any MySQL processes are killed
Try to run mysql, it shouldn't work.
Don't worry about some of the rm's failing they are just nonexistent.
Hope this helps & have a great day!