Batch Script: Functions

Function is a group of statements used to perform a task.

How to define a function?

A function is defined by using the label statement.

Syntax

:function_name

    Do_something

GOTO :EOF

GOTO :EOF

Transfers the control to the end of batch file.

Hello.bat

@ECHO OFF

REM Call main function
GOTO :main

REM Defining a function that prints "Hello World"
:sayHello
	ECHO Hello World
GOTO :EOF

REM Defining a function that prints "Good Morning"
:sayGoodMorning
	ECHO Good Morning
GOTO :EOF

:main
	CALL :sayHello
	CALL :sayGoodMorning
	ECHO Done....
GOTO :EOF

C:\Users\Public>Hello

Hello World

Good Morning

Done....

As you see Hello.bat file, I defined 3 functions.

a.   sayHello

b.   sayGoodMorning

c.    main

CALL command is used to execute the function.

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