View the maximum number of connections in MySQL and the number of connections in MySQL

View the maximum number of connections in MySQL and the number of connections in MySQL
Mysql version: mysql5.5.40 or Mariadb 10.0.14

Max_connections = 151 by default

Method 1: Applicable to linux

[Root @ mydata184 ~] # Mysqladmin-uroot-p variables | grep max_connections

Method 2: Applicable to mysql client commands
[Root @ mydata184 ~] # Mysql-u root-p

Mysql> show variables like 'max _ connections ';

How do I modify the default number of connections?
Add max_connections = *** to mysqld Of my. cnf or my. ini.

Save and exit. Restart mysql.