#! /bin/sh

# Question 2:

# Use the id program to determine the effective user ID number of the
# user that runs the program. Print the message "I am root" if the user
# id number is 0; print a different message otherwise.

#    Note: you should check the user id number, not the user id name.

uid_num=$(id -u)

if [ "$uid_num" -eq 0 ]
then
    echo "I am root"
else
    echo "I am not root"
fi