function command in Linux with examples

Function is a command in linux which is used to create functions or methods.

using function keyword : A function in linux can be decalred by using keyword function before the name of the function. Different satements can be separated by a semicolon or a new line.
SYNTAX
```
function name { COMMANDS ; }
```
using parenthesis : A function can also be decalred by using parenthesis after the name of the function. Different satements can be separated by a semicolon or a new line.
SYNTAX
```
name () { COMMANDS ; }
```
Parameterised function :

$1 will displays the first argument that will be sent and $2 will display the second ans so on…
help function : It displays help information.