if else en bash code example

Example 1: 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

Example 2: bash if

#!/bin/bash

foo="qux"
bar="qux"

if [ "$foo" = "$bar" ]; then
    echo "The strings are equal."
else
    echo "The strings aren't equal."
fi