find
find <where> -name <pattern>
Risk: Safe
What it does
Searches a folder and every folder inside it for matching names.
When to use it
When you know a file's name but not its room.
Example
$ find kedai -name "*.log"Every log file in the shop.
$ find kedai -iname "sambal*"Big or small letters, both match.
$ find kedai -type d -emptyEmpty folders only.
Learn it in: Find files with find · Official docs