INTRODUCTION TO FUNCTIONS (FUNCTION CALL & DEFINITION) IN SHELL SCRIPTING – LINUX / UNIX

FUNCTION DEFINITION
function function_name ( )
{
Statement-1
Statement-2
— – — – – – – –
}

FUNCTION CALL
function_name arg1 arg2 arg3 . .. . . . . .

Arguments are optional to pass from function call to function definition.

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LINUX / UNIX COMMANDS & SHELL SCRIPTING
https://www.youtube.com/watch?v=eAoLQwGpWJs&list=PLLOxZwkBK52DRvS1wKjAHvbOwLmLDl1Io