How to create parameterized aliases in bashrc

[Aman Jain]

Hi

 I would like to create an alias to show Nth line of a file.

 I  tried something like
 alias shline='head -$1 $2 | tail -1'  #$1 is the line number and $2
is the filename
                                                   # Usage should be :
$    shline 5 file.txt

But it isn't working......

Can anyone suggest a better alternative

Thanks
Aman Jain