Rewrite the following script using a switch statement:
#!/bin/csh –f
# Grades program
echo –n "What was your grade on the test? "
set score = $<
if ( $grade >= 90 && $grade <= 100 ) then
echo You got an A\!
else if ( $grade >= 80 && $grade <= 89 ) then
echo You got a B.
else if ( $grade >= 70 && $grade <= 79 ) then
echo "You're average."
else if ( $grade >= 60 && $grade <= 69 ) then
echo Better study harder
else
echo Better luck next time.
endif