1.apt-cache search  搜索mysql资源

sudo apt-cache search mysql 

2.apt-get install  例如安装mysql5.6，需要

mysql-server-5.6 mysql-client-5.6 mysql-common-5.6资源

sudo apt-get install mysql-server-5.6 mysql-client-5.6  mysql-common-5.6

乌班图安装mysql