To search all the Linux man pages for a particular command or text, you can use the apropos command.
The apropos command searches the man page database for keywords and displays a list of man pages that contain those keywords.
For example, to search for the keyword network, you can use the following command:
apropos network
This will display a list of man pages that contain the keyword network.
You can also use the apropos command to search for specific commands. For example, to search for the ping command, you can use the following command:
apropos ping
This will display a list of man pages that contain the ping command.
You can also use the man command to search for specific commands or text within a specific man page. For example, to search for the ping command within the man man page, you can use the following command:
man -k ping man
This will search the man man page for the ping command and display any matches.
You can also use the -w option to search for specific text within all man pages. For example:
man -w network
This will search all man pages for the keyword network and display any matches.
It's important to note that the apropos and man commands only search the man pages on your system. If you are looking for information about a command or topic that is not covered in the man pages, you may need to search online or refer to other documentation.