Free northern tools software for linux

lopster-tools is a set of tools for use with Lopster that allows users to view statistics for download and upload transfer, incomplete and finished files, how many MB are downloaded or uploaded, and the difference between down- and upload, amongst other features.

Cryptomak Cipher Tools project consists of a collection of PHP scripts for encryption purposes.
Cryptomak contains a cipher and tools for encryption utilities written in PHP, including substitution, vigenere, affine, transposition, and index of coincidence.
It is powered by the Phrame platform which implements MVC design and the Smarty template engine.
Enhancements:
- It is programmed in modular programming. Welcome to OOP world ;)
- Using Phrame as web aplication platform which implements MVC design
- Using Smarty as template engine at the view layer
- New hashing script added
- Better web design

Radar Tools in short RAT is a small collection of tools for processing SAR (synthetic aperture radar) remote sensing data, packed together in a nice graphical user interface.
Our motivation to start the development of RAT is that modern remote sensing software like Erdas Image or ENVI include only some basic SAR functionality. Advanced algorithms have to be implemented by oneself.
So we descided to start the development of RAT. RAT should bring modern SAR algorithms to a wider user-base by simplifying in particular the data handling and processing of complex SAR data.
RAT is planned as an ongoing community effort, i.e. there will be no final version with a certain functionality. It is our idea to include more and more SAR tools in future and to make them freely available to the scientific community.
We of course also hope for external contributions. Because of this, the programming interface of RAT is kept quite simple and adding own functions is quite easy. Function templates are included in the distribution and a step-by-step description of how to program a RAT module will appear soon in the documentation.
Main features:
General features
- Cross-platform (Unix, Windows, Linux & Mac OSX)
- Free software, no commercial software license needed (when using the IDL-VM version)
- Availability of the complete source code
- Modular design, easy to extend by own functions
- Small memory footprint even when processing large images (vertical tiling)
- No limitation on the image size
- Keep track of data representation changes during image processing
- Optimised preview on screen while calculations are done in full resolution
- Native import routines for E-SAR (DLR) and ENVISAT-IMS (ESA) data
- Export possibility to generic graphic formats (png, jpg & tiff)
- Undo function for the last processing step
Generic image manipulation
- Resize, presumming & cut region
- Zooming of an area of interest
- Mirror vertical and horizontal
- Binary transforms
Single channel SAR
- SAR speckle filtering (Boxcar, Median, Gauss, Kuan, Frost, MAP Lee, refined Lee, Lee-Sigma)
- Edge detection (RoA, MSP-RoA, Sobel, Roberts)
- Co-occurance texture features, variation coefficient
- Point and distributed target analysis
- Generic slant-to-ground range projection
SAR polarimetry
- Polarimetric point target analysis
- Polarimetric speckle filtering (Boxcar, Lee, refined Lee)
- Polarimetric CFSAR edge detection
- Calculation of interchannel ratios, correlation & phase differences
- Formation of covariance and coherency matrix, span calculation
- Polarimetric basis transforms (linear -> circular ....)
- Decompositions (Pauli, Freman-Durdan, Moriyama, Entropy/Alpha, Eigenvalue, Sphere-Diplane-Helix....)
- Polarimetric classification (Entropy/Alpha/Anisotropy, Wishart, No. of scatterers, physical, Lee category preserving...)
- Polarimetric calibration: imbalance, symmetrisation & crosstalk (Quegan method)
SAR interferometry
- Image pair coregistration (coarse, subpixel & spatially varying)
- Interferogram formation
- Flat-earth removal
- Phase-unwrapping (least-squares only)
- Phase noise filter (Boxcar, Goldstein & GLSME)
- Coherence estimation (Boxcar, Gauss, Region Growing)
- Shaded relief calculation
Polarimetric SAR interferometry
- Formation of POLINSAR covariance and coherency matrices
- Coherence estimation & optimisation
- Extraction of optimised ESPRIT phases
- POLINSAR speckle filtering (Boxcar, Gauss & Lee)
- Coherence analysis in the complex unitary plane

xen-tools project is a collection of scripts which allow you to manipulate virtual images for the Xen virtualization software.
With the tools installed, you may create new instances of Debian, complete with networking, OpenSSH, and user accounts, with one simple command. Images may also be easily updated, listed, or deleted.
Main features:
- Create new Xen instances of Debian Sarge, in minutes. (xen-create-image)
- Duplicate an existing image, whilst updating the networking information. (xen-duplicate-image)
- List all existing images with their networking details (xen-list-images)
- Delete previously created instances. (xen-delete-image)
- Update the images youve created with apt-get, without booting them. (xen-update-image)
Creating A New Image:
The script will contains a full manual written using the perl documentation system, perldoc, which you can read by executing:
xen-create-image --manual
This manual describes the operation of the script, and the supported options. (Each of the available options may be setup in a configuration file for ease of use.)
As a very simple example the following command willcreate an image using DHCP to obtain its networking information. The primary disk will 2Gb with 128Mb memory and swap:
xen-create-image --hostname=vm01 --dir=/home/xen
--size=2Gb --swap=128Mb --memory=128Mb --dhcp
If you wish to give the instance a static IP address then provide the information with the following flags:
--ip
The IP address to give the instance.
--gateway
The IP address of the gateway machine.
--broadcast
The broadcast address to use.
--network
The network the image is upon.
--netmask
The netmask to use.
Enhancements:
- This release supports the installation of RPM-based distributions via the external rinse tool, which is more reliable than the rpmstrap utility.
- New guests will now have a random MAC address generated by default, to avoid issues with udev, and several other minor bugfixes were applied.

The Linux Wireless Extension and the Wireless Tools are an Open Source project sponsored by Hewlett Packard (through my contribution) since 1996, and build with the contribution of many Linux users all over the world.

The Wireless Extension (WE) is a generic API allowing a driver to expose to the user space configuration and statistics specific to common Wireless LANs. The beauty of it is that a single set of tool can support all the variations of Wireless LANs, regardless of their type (as long as the driver support Wireless Extension).

Another advantage is these parameters may be changed on the fly without restarting the driver (or Linux).

The Wireless Tools (WT) is a set of tools allowing to manipulate the Wireless Extensions. They use a textual interface and are rather crude, but aim to support the full Wireless Extension. There are many other tools you can use with Wireless Extensions, however Wireless Tools is the reference implementation.

iwconfig manipulate the basic wireless parameters
iwlist allow to initiate scanning and list frequencies, bit-rates, encryption keys...
iwspy allow to get per node link quality
iwpriv allow to manipulate the Wireless Extensions specific to a driver (private)
ifrename allow to name interfaces based on various static criteria

Most Linux distributions also have integrated Wireless Extensions support in their networking initialisation scripts, for easier boot-time configuration of wireless interfaces. They also include Wireless Tools as part of their standard packages.
Wireless configuration can also be done using the Hotplug scripts and distribution specific support, this enable the proper support of any removable wireless interface (Pcmcia, CardBus, USB...).

Any versions of the Pcmcia package offer the possibility to do wireless configuration of Pcmcia and Cardbus card through thefile wireless.opts. This allow to fully integrate wireless settings in the Pcmcia scheme mechansism. However, this method is now deprecated in favor of distribution specific methods.

Please note that the Wireless Tools (starting with version 19) supports fully IEEE 802.11 parameters and devices, support older style of devices and most proprietary protocols, and are prepared to handle HiperLan as well. More recent versions of course adds more 802.11 support.

But, unfortunately not all drivers support all these features...

KMail Power Tools is meant to be a suite of enhancements to KMail and may be other mail user agents.
It is currently composed of only one (perl) script that acts as a filter (take input from stdin, outputs the modified mail to stdout), adds dialog boxes to kmail, and allows the user to:
- remove all attachments from an email (no user interaction),
- remove selectively attachments, after asking the user,
detach (i.e. save then remove) any attachment to a directory chosen by the user,
- hence reducing the size of your mailbox, while allowing you to backup important attached files.
All these actions are logged within a sentence in the mail body (see below).
Note: removing and detaching is already supported by Thunderbird, but my favourite mailer program is KMail, then...
How it works
KMail allows the definition of filters (like any other email program), but you can define filters:
- which are launched manually,
- which can be programs reading your email on stdin and outputing the result on stdout (or "pipe through").
So I had the idea to use this in order to enhance KMail, and allow it to remove and detach attachments: kmailpt will read and interpret the email (thank you Perl MIME::Parser), then depending on the command line switches, popup a dialog box to ask the user for a directory where to save attachments, and ask him which attachment to remove/detach (thank you Kdialog!).
Also, the sentence "[Attachment removed by jice (26/02/2007 20:33:01): bill.zip]" will be added to the mail body. When you detach an email, it will add a similar sentence, and if the mail body is html, you will even get a link to the new location of the file: "[Attachment saved by jice (26/02/2007 20:36:17) to heavenly.gif]", on which you can even click in order to view the detached file. For text/plain messages, the sentence will be something like: "[Attachment saved by jice (26/02/2007 20:36:17) to file:///home/jice/Images/heavenly.gif]" (unfortunately, although kmail renders http:// or ftp:// urls as links, file:// are not (yet?) - I should enter a bug on bugs.kde.org for this...).
Should you want to know the currently available command line switches, here is the help:
Usage: kmailpt [options]
kmailpt takes an email on stdin, performs actions based
on this mail, then output an email on stdout.
Without any option, it will remove any file attached.
Options:
-d detach the attachments (save and remove)
-q ask which attachment to remove
-h prints this help

Python Audio Tools are a collection of audio handling programs which work from the command line. These include programs for CD extraction, track conversion from one audio format to another, track renaming and retagging, track identification, CD burning from tracks, and more.
Supports internationalized track filenames and metadata using Unicode. Works with high-definition, multi-channel audio as well as CD-quality. Track conversion uses multiple CPUs or CPU cores if available to greatly speed the transcoding process. Track metadata can be retrieved from FreeDB or FreeDB-compatible servers. Audio formats supported are:
- WAV
- AIFF
- Sun AU
- FLAC
- WavPack
- Monkeys Audio
- MP3
- MP2
- Ogg Vorbis
- Ogg Speex
- M4A
Easy to install and use:
I dont like programs with lots of obscure dependencies, so Ive written Python Audio Tools to require as few external libraries and programs as possible. Most formats require only one or two common executables and some require none at all. Installation utilizes Pythons built-in distutils, but a provided makefile reduces the process to a simple "make install" command.
The programs that make up Python Audio Tools provide a consistent interface for painless switching between them. man pages are included, as is a lengthy manual for both users and programmers. See the short tutorial in the documentation for an illustration of their usage.
These Python Audio Tools are designed with Unix-like systems in mind. Although most of it is written in pure Python, the libcdio library is used to read from a CD-ROM drive. If one is willing to forgo the CD-based tools, Python Audio Tools is fully portable so long as the required helper applications are present. I have used it on the i386, x86_64 and ppc architectures without difficulty.
Standards compliant
Because Python Audio Tools sticks very close to established, documented standards, it has no trouble interoperating with other audio-handling programs. If you want to rip CDs with Exact Audio Copy, batch convert them to M4As with these tools and play them back in iTunes, thats no problem.
Enhancements:
- Revamped the track metadata system.
- Improved the file detection routines.
- Minor bugfixes.