Positional Parameters help

[EazyZ]

So I'm learning the shell off of linuxcommand .org and I am stuck on positional parameters, I am stuck here...
Command line options

As we discussed before, many programs, particularly ones from the GNU Project, support both short and long command line options. For example, to display a help message for many of these programs, you may use either the "-h" option or the longer "--help" option. Long option names are typically preceded by a double dash. We will adopt this convention for our scripts.

Here is the code we will use to process our command line:

interactive=
filename=~/system_page.html

while [ "$1" != "" ]; do
case $1 in
-f | --file ) shift
filename=$1
;;
-i | --interactive ) interactive=1
;;
-h | --help ) usage
exit
;;
* ) usage
exit 1
esac
shift
done

I tried putting #!/bin/bash on the top to get the bash to run it and also tried putting a file where it says system_page.html but nothing, some elaboration would be great, thanks.

[Cabhan]

What is your question? What are you trying to do? What error message are you getting?

[EazyZ]

Sorry I misunderstood what the lesson was telling me and I figured it out, thanks anyways!