Module development and code questions

I am trying to figure out a way to do this:

-A user comes to the site and uploads a file. . .say "test.ext"
-The file prior to being saved is piped through a command line utility to append something on it
-then it is saved as normal and is accessable and all that good stuff. . .

Any help onhow I could do this???

Thanks!

Mathias (of ecommerce fame) recently completed work on a new module for my site, Poolitics, which enables users to maintain an account balance which can be used to purchase products (in the case of my site, entries in predictive contests).

when purchases are made via "account", the total is automatically deducted from the user's balance. additionally, the admin is able to manually adjust users' balances.

I'm adding a few features to the new fckeditor module (resize images on upload, per-user filemanager roots) and I need a secure way to pass the user's name to fckeditor. Naturally, I figured I'd just create a session, and then get the info using $_SESSION. Wow, big mistake.

I've started useing your clipper module and really like it. I would like one additional feature, tho. I'll explain my situation. I have with the following flexinode types created:

contest
contest_entry
contest_winner

I've set contest to be a clipper. I've created a "Contest" vocabulary and I've assigned all three of these nodes to be required in the Contest vocabulary.

I'm thinking about a project for a possibly new module in Drupal that I'm calling "discussion-polls".

I'd like for the discussion-polls module to do the following things:

• Work like the comments module where a "discussion-polls" link automatically shows up after a story.
• The link would take you to discussion-polls for that story (and maybe associate the poll with the same set of categories as the story). Users would be able to submit a new poll for that story (with moderation).
• Users would also be able to submit new choices for an existing poll (with moderation)
• Choices would be listed in the order of the most votes at the top. There might have to be a playpen for new low-count choices where they could get consensus-rated by trusted people before getting promoted to the main list.
• Users would be able to change their vote (old vote is nullifed, new vote counts)
• There could be different types of polls. Specifically:
  • One vote per question
  • Multiple votes per question
  • Rating each choice (1=worst, 10=best)

The question is, how to approach this within the Drupal architecture.

Hi all:
I've tried to search for an answer to this question, but can't find it.
I'd like to know if its possible, using the 4.5 release of the e-com module, to have attributes on a product. I can't seem to find out how to do this, but when I look at some of the sample sites, they've done it ( eg. http://www.snowboard-mag.com/node/549 )
Any help on where to look for more information is appreciated.

Thanks,

Mike