How to check the versions of Linux, Apache, MySQL and PHP

This article shares with you how to check the versions of Linux, Apache, MySQL, and PHP. It has certain reference value. If necessary Friends can refer to

Essence:

Check the Apache version under linux httpd -v

Check the PHP version under linux php -v

Check the mysql version under linux mysql -V (capital V)

1. View Linux kernel version, system information, there are three commonly used methods:

uname -a;

##more /etc/issue;

cat /proc/version;

##2. View apache The version information

If it is installed through yum or rpm, you can use rpm -qa |gerp httpd to view it;

You can also query through httpd -v;

##Of course, after installing apache, you can directly elink loopback to view apache information.

Use service httpd status to check the running status of httpdUse service httpd stop to stop httpd
Use service httpd start can start httpd

3. Check the version information of phpif It is installed through yum or rpm package. You can use rpm -qa |grep php to view;

Similarly, you can also use php -v to view php version information;

# Under normal circumstances, most of them are installed by lamp Finally, use the test page of phpinfo to check the information of the installed PHP;

The specific method is to create a new index.php file under /var/www/, the specific content is

<?
php phpinfo();
?>

That’s it. Then add the index.php type to the /etc/httpd/conf/httpd.conf file, and then restart httpd to get the following results.

##4. Check the version information of mysql

If it is installed through yum or rpm package, you can use rpm -qa |grep mysql to view;

You can also use mysql -V or --help|grep Distrib to view;

You can also enter mysql and then use the command select version(); to view;

or status; command to view.

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