Simple IF else, Elif Statements Shell Script in Linux

We have already described few shell scripts and this post explain simple if else, and Elif  statements with small example. This condition statement used to depending on whether certain conditions are true.

Simple FI... Else... FI

The below script does not require two parameters, Just pass value when execute.
The first condition is true command1 is executed otherwiase goes not command2

#!/bin/bash

if [ "$1" = "linuxfaq" ]

then

    echo "Yes,linuxfaq"

else

    echo "No, Not linuxfaq"

fi

IF... Elif... Else... FI

Check multiple condtion with an areguments

 

#!/bin/bash

echo "=====COUNTRY LIST======="

echo "ISO Code's are:"



echo "IN = India"

echo "US = USA"

echo "UKR= Ukraine"



echo "Choose your Country List"

read COUNTRY



if [ $COUNTRY = IN ]

then

echo "You have Selected"  $COUNTRY



elif [ $COUNTRY = US ]

then

echo "You have Selected"  $COUNTRY



elif [ $COUNTRY = UKR ]

 then

echo "You have Selected"  $COUNTRY



else

echo "Choose any one Country Name?";

fi

Output :

=====COUNTRY LIST=======
ISO Code's are:

IN = India
US = USA
UKR= Ukraine
Choose your Country List:  IN
"You have Selected India.