In "bash", "if" constructs are ended with code example
Example: else if statement bash syntax
#!/bin/bash
read -p "Enter your marks: " marks
if [ $marks -ge 80 ]
then
echo "Very Good"
elif [ $marks -ge 50 ]
then
echo "Good"
elif [ $marks -ge 33 ]
then
echo "Just Satisfactory"
else
echo "Not OK"
fi