In this Bash Tutorial, we will learn the syntax and usage of Bash Else If statement with example Bash Scripts.

Bash Else If

Bash Else If is kind of an extension to Bash If Else statement. In Bash else-if, there can be multiple elif blocks with a boolean expression for each of them. If elif if ladder appears like a conditional ladder.

Syntax of Bash Else IF – elif

Following is the syntax of Else If statement in Bash Shell Scripting.

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if <expression>; then
	<commands>
elif <expression>; then
	<commands>
else
	<commands>
fi

where

<expression>Similar to Bash If statement, you may provide a single condition or multiple conditions after if keyword.
<commands>Set of commands to be run when the <condition> is true.
elifElse If

In this if-else-if ladder, the expressions are evaluated from top to bottom. Whenever an expression is evaluated to true, corresponding block of statements are executed and the control comes out of this if-else-if ladder.

If none of the expressions evaluate to true, the block of statements inside else block is executed. Also, note that the else block is optional.

Whenever a default action has to be performed when none of the if and else-if blocks get executed, define else block with the default action.