Free to create business invoices software for linux

Web Business Pro is a Web application designed for everyday business activities. The project includes support for customer lists, inventory, receipt printing, and accounting. Fully featured search functions and filters make it easy to find what you need quickly.

Auction Business Manager is a tool that helps you keep track of income and expenses for your online auctions, e.g. with eBay.
Auction Business Manager also color codes your listings so that you can easily see who you need to ship packages to and who still needs to pay.
There is a statistics page that tells you, by month, what your expenses were, what your income was, and how much profit you made, so its easy to see how well your business is growing.
Main features:
- Easy installation - just unzip, upload, install a single table into your MySQL database and youre ready to rock!
- Simple, intuitive interface - Auction Business Manager is structured so that its very easy to make changes to and update your listings.
- Ongoing Balance Sheet - Worried that you might be spending more than youre making? No problem, just keep track with Auction Business Manager, and compare how youre doing from month to month.
- Its Online - Once you install Auction Business Manager on your hosting account, you can access it from any computer.
- Password Protected - Auction Business Manager uses a simple login system to keep unwanted visitors and meddlers out.

create Image is an amarok script that can create an image of the current playlist and save the files to an iso image.

The iso image is found in the respective home folders.

Kumula is designed to become a complete software suite for business needs. Started as software for consultants, it is flexible enough to be used by almost any class of business. Kumula Business Suite provides a small CRM (Clients) and a Mini-DMS (Documents), enhanced by some other applications. Everybody is invited to use it or enhance it.
Kumula is written in Qt (http://www.trolltech.com/products/qt/), PyQt and Python using the fabulous Eric3 development environment.
Enhancements:
- This is the last stable release before Ill port it to Qt4 (as "Kumula2"), so I feel free to call it "1.0".
- The whole suite is becoming bigger and bigger, so now its time to split it. This is the base package with the central Kumula library and the most important applications. The package contains the following programs:
BizCalc:
- The modular designed calculator tool, coming with a spartanic RPN calculator and an unit conversion module
Clients:
- The client/customer management application, with many improvements (like individual client attributes) and the modules "Info" (logo+description), "Contacts" (for managing contact persones, addresses and communication data) and "Tickets" (for letting the users talk about a client like on a web forum)
Configurator:
- The central configuration utility, to setup the database access and the user interface (menus, icons, ...) of all Kumula applications.
Users:
- A small tool for managing the people using Kumula.
- Further application will be provided in separate packages for easier maintenance and faster bugfixes and updates.

Simple Invoices is a clean, simple, and basic Web-based invoicing system.

Simple Invoices is meant for personal invoices, home office invoicing, small organization invoicing, and basic POS (point of sale) systems for light usage.

Its goals are to be easy to use, simple and clean, and focused on its task. It is not meant for heavy-use POS applications, nor is it meant to be enterprise ready.