Does this help?

    print __LINE__  + 1


> #!/usr/bin/ruby #first line of the program
> 
#################################################################################
> # DESCRIPTION         : xxxxxxxx
> # AUTHOR              : yyyyyyyy
> 
#################################################################################
>
>   # a sample test function
>   def test #8th line of the program
>     xxxxxxxxxx;  #9th line
>     yyyyyyyyyy;  #10th line
    print __LINE__  + 1
>   end  #11th line -- function test ends here
>

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