Functions are reusable code that can be grouped under a single name.
Declare a function Calling a Function Function with arguments Variable scope in Functions
How to declare a Function and call it
Function defination contains the multiple lines of code to executes.
Functions contains a name of a function enclosed in {}.
It Can be declare in two ways
function function_name {
# Commands or valid bash code
# multiple lines
}
function function_name() {
# Commands or valid bash code
# multiple lines
}
How to pass a parameters to an function
function_name "parameter1" "parameter2" "parameter3".. "parametern"
Parameters can be access using $1 $2 $3.. $n
function function_name() {
# $1 represents first paramter
# $2 represents second paramter
# $n represents nth paramter
}