elif.ksh
#!/bin/ksh
# elif.ksh
# This program demontrates the use
# of elif, the ability to make a
# 2nd test if the 1st test is false.
# - Jim
# Assign a default grade.
Grade="F"
# Clear the screen.
clear  #This is a unix command.
print -n "Enter number grade: "
read NumberGrade 
if (( NumberGrade > 89 ));then
 # Person gets an "A".
 Grade="A"
elif (( NumberGrade > 79 ));then
 # Person gets an "B".
 Grade="B"
elif (( NumberGrade > 69 ));then
 # Person gets an "C".
 Grade="C"
elif (( NumberGrade > 59 ));then
 # Person gets an "D".
 Grade="D"
fi
print
print "Letter grade is: $Grade"