How to change root password of mysql

sudo service mysql stop
sudo mkdir -p /var/run/mysqld

sudo chown mysql:mysql /var/run/mysqldsudo /usr/sbin/mysqld --skip-grant-tables --skip-networking &

mysql -u rootmysql> FLUSH PRIVILEGES;

mysql> USE mysql;mysql> UPDATE user SET authentication_string=PASSWORD("<Your Password>") WHERE User='root';mysql> UPDATE user SET plugin="mysql_native_password" WHERE User='root';

mysql> exit
sudo pkill mysqldsudo service mysql start