Bash - if...else statement

In this article, we would like to show you if...else statement in Bash.

Quick solution:

if test_expression
then
    command_1
else
    command_2
fi

Where:

• test_expression - is the condition that we want to check,
• then - executes command_1 if the condition is true, 
• else - executes command_2 if the condition is false,
• fi - closes the if...else statement.

Practical example

In this example, we use echo command that displays a line of text that is passed in as an argument. Using if...else statement we check if directory under given path exists and we display the corresponding message.

#!/bin/bash

if [ -d "path/to/directory" ]
then
	echo "The directory exists."
else 
	echo "The directory does not exist."
fi