Free capability to software for linux

Gtkcat is a quick and compact GTK disk-catalog program.

I use this to index my source code CD-ROMs and search through them. You could probably use this to catalog other things, but keep in mind the only search criteria is a filename or a filename pattern.

This program is quite a bit faster than GTKtalog, and if all you need is basic filename search capability, this should be good enough.

Email sends email to remote SMTP servers via the command line, which makes it useful in cron jobs. It will send to any RFC standard remote ESMTP server, and will allow you to encrypt, sign, and design your message on the fly.
It has the capability to use signature files with dynamic options, address book functionality, and users can also attach pictures, binary files, documents, or whatever they want. It is completely compatible with GNUPG for encryption and signing, and is easy to configure and use.
Enhancements:
- A bug where an assert caused an abort when encrypting any message with GnuPG under Cygwin has been fixed.
- Compile time problems where the compiler would complain about SIG* being undeclared have been fixed.
- There is some minor source code cleanup.

WMApp DockApp Library is a C++ based library for writing WindowMaker-style dockapps. To write a dockapp, it is generally necessary to perform some magic Xlib incantations, supply a clipping mask, and set up X event checking.
Like larger graphics libraries such as GTK+ and Qt, WMApp automates this process by providing the classes and functions necessary for widget creation and callbacks.
The library provides numerous widgets, all with the traditional dockapp appearance. Many common dockapps could already be rewritten to use this library.
WMApp widgets available (most shown above) include:
- WMText, a text widget with three available font sizes (two are shown).
- WMLED, for creating the cutesy blinkenlights beloved by authors of PPP/Ethernet status dockapps.
- WMHistory, for showing the history of some quantity.
- WMMeterBar, for showing the quantitys instantaneous value. Available in three different styles.
- WMSlider, a subclass of WMMeterBar. This class lets you change a value by clicking or scrolling the mouse wheel over the widget.
- WMImage (not shown), a box with the capability to display a pixmap.
- WMButton. Buttons may have one or more callback functions attached.
- Or, inherit from WMCallback in order to give any other widget the ability to run callback functions.
- WMCanvas, a subclass of WMImage that lets you draw directly onto the dockapp.
- WMEllipse; inherit from this widget to create rounded buttons, images, etc.
- WMFrame. These container widgets may be nested to create the desired layout.
- WMWindow (one instance for each possible state of the dockapp). These contain all the other widgets for that state. WMWindows may have callback functions attached that execute every so often. These could be used, for instance, to update a clock or progress bar, or to "time out" an Internet connection.
Enhancements:
- Several fixes were made so that WMApp will compile with modern, stricter C++ compilers.
- Two new, very small fonts are now available.
- There are also new set/getuserdata() members of the WMApp and WMWidget classes that can be used to store arbitrary data to be used within callback functions.

Omnitty is a curses-based program that allows one to log into several machines simultaneously and interact with them, selectively directing input to individual machines or groups of selected machines.

You can run both line-oriented and screen oriented in the target machines, because Omnitty has built-in terminal emulation capability. When the window is large enough, Omnitty also displays a "summary area" for each machine, in which it shows what the latest output from the machine was, so you can have an idea of what is going on in each machine.

phpMSAdmin project is designed to be a capable replacment to "SQL Enterprise Manager", which requires Windows to run.
With the use of phpMSAdmin, your database can be managed from any computer capable of running a web browser (open source or otherwise).
Enhancements:
- Added stored procedure, view and function support to database exporting.
- Fixed bug in query builder where selecting no criteria would cause error.
- Fixed broken "less than" bug on query builder.
- Added "LIKE" wildcard searching and "ORDER BY" capability to the query builder.

phpHtmllib is a set of PHP classes and library functions to help facilitate building, debugging, and rendering of XML, HTML, XHTML WAP/WML Documents, and SVG (Scalable Vector Graphics) images as well as complex html widgets.
It provides a mechanism to output perfectly indented/readable XML/HTML/XHTML/WML/SVG source, and a programmatic API to generating XML/HTML/XHTML/WML/SVG on the fly.
Enhancements:
- fixed a problem with the ADODBDataListSource not doing count() properly.
- fixed a problem with the MessageBoxWidget::add_button() not working when an action contained a .html url
- Got the FormWizard to work. It should be useable now. It requires a child of the StandardFormContent.
- Changed FormValidation::is_name() to allow a second parameter to specify the max allowable length.
- Added ordering capability to the FEComboListBox
- Added 3rd parameter to DefaultGUIDataList::action_button() to support extra js prior to the submit being called.
- changed the order in which the content for the head are rendered for the HTMLPageClass. All external links are now built first before the inline js and css is added.
- changed the css class name of the DefaultGUIDataList column header links to resolve a conflict with the FERadioGroup text links
- changed FECheckBox clickable text to use the same css class name as the FERadioGroup clickable text. form_link
- Added a new optional parameter to the FormElement::get_element_name() so it can be called statically to discover an elements name that is used in the form, based on a string.
- First pass at a working FormWizard. Its still combersome a bit.
- Added an index parameter to FormElement::build_id_name() for building consistent ID strings for complex FormElement children.
- Added new FEColorPicker with some used JS code from http://www.mattkruse.com/javascript/colorpicker
- Fixed an issue with the FEComboListBox when manually calling set_value().
- The right hand side data wasnt being merged properly with the left hand data.
- Brian Laird added code to have a list of required selected values for the FEComboListBox.
- added XMLTagClass::get_tag_attribute()
- Fixed a problem of the DefaultGUIDataList missing the wrapping form tag when someone has added an action column.
- Fixed a minor issue with the FEHidden element with a value of 0 and php5
- Fixed a small issue with the FormProcessor building a hidden element that wasnt W3C compliant.
- Fixed a potential problem with the FEDate element being used more than once in a form.
- Added https support to the FormValidation::is_url().
- Added InfoTable::set_title_css()
- Added Daniel I. Roberts PEARDB_DataObjectDataListSource
- Fixed some validation issues with FEFile

GDAL project is a translator library for raster geospatial data formats that is released under an X/MIT style Open Source license.

As a library, it presents a single abstract data model to the calling application for all supported formats.

The related OGR library (which lives within the GDAL source tree) provides a similar capability for simple features vector data.