Install Phpmyadmin in Ubuntu
It can be installed using the following command on terminal
sudo apt install phpmyadmin
You might have to run the update command before installing
sudo apt-get update
After installing PHP my admin you can access it through browser using
http://localhost/phpmyadmin/
It might return 404 error. You have to create a soft link as follow
sudo ln -s /usr/share/phpmyadmin/ /var/www/html/phpmyadmin
Detailed explanation here https://bit.ly/2DcHD8M
You might have to install mbstring extension for phpmyadmin to work
sudo apt install php-mbstring