How Can I Find a Specific Config File in Linux?

What application or service is this config file for? Knowing the specific software can guide you to likely locations where its configuration files reside. Also, what led you to search everywhere if you can't recall the specific location? It might help to narrow down your search.

Make sure to run your commands as root to access every directory. This way, nothing is off-limits, and you'll have a much better chance of finding that elusive config file.

Is this search for a niche exercise, or could practical knowledge about typical config file locations simplify your quest? Sometimes it’s easier to find where a file should be than to sift through every directory.

To start, you should specify the mount points of relevant filesystems and use -xdev to avoid searching through irrelevant areas like /tmp or /proc. Typically, configuration files are located under /etc, but they could also be in unusual directories based on software installations. If your command is running under a non-root user, you may not have permission to access some files, so running it as root might be necessary to find everything you need.

If you want a different approach, consider using `mlocate`, which is usually on most systems. It keeps a database of files, speeding up your searches. You can run: `locate --regex '.(conf|cfg)$' | xargs stat --format "%n;%s;%Y"` to get a list formatted with the file name, size, and last modification time. From there, you can filter the output with `awk` to find files matching your size and modification date.