#!/bin/bash# What are all those mysterious binaries in /usr/X11R6/bin?DIRECTORY="/usr/X11R6/bin"# Try also "/bin", "/usr/bin", "/usr/local/bin", etc.for file in $DIRECTORY/*do  whatis `basename $file`   # Echoes info about the binary.doneexit 0# You may wish to redirect output of this script, like so:# ./what.sh >>whatis.db# or view it a page at a time on stdout,# ./what.sh | less