elif shell

"elif" is a keyword in many programming languages, including shell scripting. It is short for "else if" and is used to specify an alternative condition to be checked if the previous "if" condition evaluates to false.

Here's an example of how "elif" can be used in a shell script:

#!/bin/bash

num=10

if [ $num -eq 5 ]; then
    echo "The number is 5"
elif [ $num -eq 10 ]; then
    echo "The number is 10"
else
    echo "The number is neither 5 nor 10"
fi

In this example, if the variable "num" is equal to 5, it will print "The number is 5". If it's not equal to 5 but equal to 10, it will print "The number is 10". Otherwise, it will print "The number is neither 5 nor 10".