function command in Linux with examples

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

  1. using function keyword : A function in linux can be decalred by using keyword function before the name of the function. Different satements can be seperated by a semicolon or a new line.
    SYNTAX

    function name { COMMANDS ; }

  2. using parenthesis : A function can also be decalred by using parenthesis after the name of the function. Different satements can be seperated by a semicolon or a new line.
    SYNTAX

    name () { COMMANDS ; }

  3. Parameterised function :

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


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