a2query:tldr:1fb77
The 'sudo a2query -m' command is used in a Linux operating system to query the Apache web server modules that are currently enabled.
Here's a breakdown of the command:
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'sudo' is a command that grants temporary administrative privileges to the user for executing the subsequent command. It is often used when the command requires elevated privileges.
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'a2query' is a command-line utility specific to Apache web server, which is used to query the current configuration of Apache. In this case, it is used to specifically query modules.
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'-m' is an argument or option passed to the 'a2query' command. It specifies that the command should query modules.
So, when you run 'sudo a2query -m', it will display a list of enabled Apache modules on your system. These modules add extra functionality to the Apache web server, such as SSL (mod_ssl), PHP integration (mod_php), or URL rewriting (mod_rewrite), among others.