#
#	First, all possible users.  These are found in the file "/etc/passwd"
#
echo "Number of possible users on the system: \c"
cat /etc/passwd | wc -l

#
#	Next, all users currently logged in (using "who")
#
echo "Number of users logged onto the system: \c"
who | wc -l

#
#	Finally, the number of running processes (using "ps -e")
#
echo "Total number of processes running:      \c"
ps -e | wc -l
