Free ink levels software for linux

Libinklevel is a library for checking the ink level of your printer on a system which runs Linux.
libinklevel supports printers attached via parallel port or usb.
Enhancements:
- Support for the following printers has been added: Canon i865, Canon iP3300, and Canon MP160.

Ink is a command line tool which displays the ink level of your printer. Ink project makes use of libinklevel.

Recording level monitor records analog audio from the sources you choose and plays it back simultaneously so that you can hear it, while monitoring the loudness (input) level of the recording.

Youll be able to hear and see whether the volume is too high (introducing analog distortion and digital clipping) or too low (letting through background noise and hiss) on your audio gear.

Do you use your computer to record audio regularly? Have you noticed how hard it is to get great quality sound when recording into a computer? Did you ever try to set volume levels in your gear while juggling with input levels on your sound cards? Then this program is for you.

In the same spirit, you can choose which sound card you want to record from, which sound card you want use to hear the recorded sound, choose a recording input line and a recording input level mixer, and adjust the input level (optionally having the program lower the level if the input is too loud).

This program is licensed to you under the GNU General Public License.

Xreversi project is a networked Reversi/Othello program.

Xreversi is a complete implementation of the well-known Reversi (or Othello) board game.

It lets users play against the computer with 10 levels of AI, or against each other through a network.

Xreversi currently supports English and French languages.

Printbill is a sophistocated Unix print billing and/or accounting system with associated administration utilities. It primarily supports LPRng but now has limited CUPS support as well.
A simple print filter and accompanying daemon perform pre-printing billing, post-printing billing, print-accounting and print job quote generation. In addition, various utilities for administrators and users are provided - including programs to check your print quota and usage patterns, a web interface for both users and administrators and a command-line quote generator.
Charge rates may be specified on per-page, per-percent-coverage or both, and any number of printers/print queues can be provided (with different charge rates and printer parameters). Monochrome and CMYK colour printers are supported (with separate charge rates for both colour and black ink).
For all filters, processing can happen out-of-order, and you may prioritise jobs on the basis of size (jobs larger than a threshold can get lower priority or higher priority as desired) and jobs are billed in parallel / overlapping - jobs which finish billing first get printed first.
This is not necessarily the same as the order of arrival. Detailed stats are collected on a per-printer basis for job size, CPU time for each job, page count and ink/toner coverage, so you can analyse the usage patterns for your printers and predict when a cartridge will need to be replaced. It supports an optional user-supplied anything-to-postscript filter, so you can get properly billed for plain text, DVI files, image files, and so forth as well as PostScript.
Databases and configuration files may be stored on a centralised web server. This allows read-only access so that Unix (and conceivably Windows) clients could easily check quota, calculate quotes etc. remotely.
For fun, an additional filter is provided which allows users to deduct fixed amounts from their accounts (we use it to let students buy drinks and food from an unsecured laboratory fridge).
Enhancements:
- Finished support for per-user per-printer stats, tested that it works.

GNUstep examples is a collection of programs that are meant to show programmers how to use GNUstep.
GNUstep examples includes a calculator, a currency converter, finger, fractal, puzzle, hostaddress, and ink (a simple editor).
Enhancements:
- Minor feature enhancements

Kalcul project is a math game for children aged 8 to 15.
It has 4 levels of difficulty and the user can choose between variants that teach addition, substraction, multiplication, or division.
Enhancements:
- fixed some bugs and polished interface