To find a single file below the current directory:
find . -name mtg_jan92 -print
This displays the pathname to the file mtg_jan92 starting from the current directory. If the file is not found nothing is displayed.
To find a file below your home directory:
find ~/ -name README -print
This displays the pathname to every file with the name README in your home directory or its subdirectories.
To find several files below the current directory:
find . -name '*.fm' -print
This displays the pathname to any file with the extension .fm which exists below the current directory.
To find a directory:
find /usr/local -name gnu -type d -print
This searches to see if there is a subdirectory gnu in the directory /usr/local.