locate reads one or more databases prepared by updatedb(8) and writes file names matching at least one of the PATTERNs to standard output, one per line.
If –regex is not specified, PATTERNs can contain globbing characters. If any PATTERN contains no globbing characters, locate behaves as if the pattern were PATTERN.
By default, locate does not check whether files found in database still exist. locate can never report files created after the most recent update of the relevant database.
locate [OPTION]... PATTERN...
-b, --basename search only the file name portion of path names
-c, --count print number of matches instead of the matches
-d, --database DBPATH search for files in DBPATH
(default is /var/lib/plocate/plocate.db)
-i, --ignore-case search case-insensitively
-l, --limit LIMIT stop after LIMIT matches
-0, --null delimit matches by NUL instead of newline
-N, --literal do not quote filenames, even if printing to a tty
-r, --regexp interpret patterns as basic regexps (slow)
--regex interpret patterns as extended regexps (slow)
-w, --wholename search the entire path name (default; see -b)
--help print this help
--version print version information
sudo updatedb
$ locate python3 | head
/etc/python3
/etc/python3.10
/etc/python3.9
/etc/python3/debian_config
/etc/python3.10/sitecustomize.py
/etc/python3.9/sitecustomize.py
/usr/bin/dh_python3-ply
/usr/bin/ipython3
/usr/bin/pybabel-python3
/usr/bin/python3