HowTo: Find out If MySQL Is Running On Linux Or Not

How do I find out if my MySQL server is running or not under Linux / UNIX operating systems?

You can use mysql startup script or mysqladmin command to find out if it is running on Linux. Then you can use ps command and telnet command too (it is not reliable but it works.). mysqladmin is a utility for performing administrative operations. You can also use shell script to monitor MySQL server. You can use mysqladmin as follows:

# mysqladmin -u root -p status

Enter password:
Uptime: 4  Threads: 1  Questions: 62  Slow queries: 0  Opens: 51  Flush tables: 1  Open tables: 45  Queries per second avg: 15.500

If MySQL serer is running it will display output as above. It displays uptime and number of queries etc. If server is not running then it will dump error as follows
# mysqladmin -u root -p status

mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists!

Under Debian Linux you can type following command to find out if MySQL server is running or not
# /etc/init.d/mysql statusOutput:

/usr/bin/mysqladmin  Ver 8.41 Distrib 4.1.15, for pc-linux-gnu on i486
Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL license

Server version          4.1.15-Debian_1-log
Protocol version        10
Connection              Localhost via UNIX socket
UNIX socket             /var/run/mysqld/mysqld.sock
Uptime:                 4 min 16 sec

Threads: 1  Questions: 66  Slow queries: 0  Opens: 51  Flush tables: 1  Open tables: 45  Queries per second avg: 0.258

If you are using RedHat of Fedora then you can use following script”
# service mysqld statusOR# /etc/init.d/mysqld statusSee also:

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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