Thelocate command is a rapid file search tool that doesn't directly search the disk in real-time. Instead, it relies on an index database created by another command called updatedb This index database is typically located at "/var/lib/mlocate/mlocate.db". By utilizing this index, locate quickly finds files.
The command can be combined with wildcards and regular expressions for file searches, and it is extremely fast. Some commonly used options include:
| $ locate README ←Find files related to 'README' $ locate -r [[:upper:]] ←Use regular expression to find files with uppercase letters in their names |