If you need to search for one or more particular files, Linux systems have a few powerful methods for locating them, such as the find and locate commands. Searching for a file with a specific name can be done, but you can also search for files that follow certain naming patterns. This can be broadened all the way to finding files based on file size, file extension, or a lot of other options.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-find-file-in-linux