How to find MySQL version

[root@db ~]# mysql -u root -p -e 'SHOW VARIABLES LIKE "%version%";'

Enter password:

+-------------------------+---------------------+

| Variable_name | Value |

+-------------------------+---------------------+

| innodb_version | 5.5.49-MariaDB-37.9 |

| protocol_version | 10 |

| slave_type_conversions | |

| version | 5.5.50-MariaDB |

| version_comment | MariaDB Server |

| version_compile_machine | x86_64 |

| version_compile_os | Linux |

+-------------------------+---------------------+

Or

[root@db ~]# mysql -u root -p -e ' SELECT VERSION(); '

Enter password:

+----------------+

| VERSION() |

+----------------+

| 5.5.50-MariaDB |

+----------------+

Or

[root@db ~]# mysql -u root -p -e 'STATUS'

Enter password:

--------------

mysql Ver 15.1 Distrib 5.5.50-MariaDB, for Linux (x86_64) using readline 5.1

Connection id: 891164

Current database:

Current user: root@localhost

SSL: Not in use

Current pager: stdout

Using outfile: ''

Using delimiter: ;

Server: MariaDB

Server version: 5.5.50-MariaDB MariaDB Server

Protocol version: 10

Connection: Localhost via UNIX socket

Server characterset: utf8

Db characterset: utf8

Client characterset: utf8

Conn. characterset: utf8

UNIX socket: /tmp/mysql.sock

Uptime: 221 days 15 hours 52 min 26 sec

Threads: 101 Questions: 56945893852 Slow queries: 366 Opens: 3018 Flush tables: 2 Open tables: 123 Queries per second avg: 2973.435

Or

[root@db ~]# mysqladmin -u root -p version

Enter password:

mysqladmin Ver 9.0 Distrib 5.5.50-MariaDB, for Linux on x86_64

Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.

Server version 5.5.50-MariaDB

Protocol version 10

Connection Localhost via UNIX socket

UNIX socket /tmp/mysql.sock

Uptime: 221 days 15 hours 53 min 57 sec

Threads: 101 Questions: 56946100784 Slow queries: 366 Opens: 3018 Flush tables: 2 Open tables: 123 Queries per second avg: 2973.432