Linux.com - https://www.linux.com/news/finding-what-youre-looking-linux-0
It isn’t hard to find what you’re looking for on a Linux system — a file or a command — but there are a lot of ways to go looking.
7 commands to find Linux files
The most obvious is undoubtedly the find command, and find has become easier to use than it was years ago. It used to require a starting location for your search, but these days, you can also use find with just a file name or regular expression if you’re willing to confine your search to the local directory.