The findutils package contains programs which will help you locate
files on your system. The find utility searches through a hierarchy
of directories looking for files which match a certain set of criteria
(such as a filename pattern). The locate utility searches a database
(create by updatedb) to quickly find a file matching a given pattern.
The xargs utility builds and executes command lines from standard
input arguments (usually lists of file names generated by the find
command).
You should install findutils because it includes tools that are very
useful for finding things on your system.