(2002, "Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)") code example

Example 1: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

sudo chown -R _mysql:mysql /usr/local/var/mysql

sudo mysql.server start

Example 2: can't connect to local mysql server through socket '/tmp/mysql.sock' (2)

Try to start the MySQL server:
mysql.server start

Example 3: Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2)

ln -s /private/var/mysql/mysql.sock /tmp/mysql.sock

Example 4: ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysql.sock' (2) Ask

##	ERROR 2002 (HY000): 
##	Can't connect to local MySQL server through socket 

#### Follow below steps and you good to go... ####
sudo dpkg-reconfigure mysql-server-{version_number}
##version_number should be mysql version number installed
## Now try login in mysql shell
sudo mysql -u root -p