Okteta is a simple editor for the raw data of files. This type of program is also called hex editor or binary editor. Now that KDE is cross platform, this program can not only be used on Linux, but on Windows and MacOSx as well!
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.
Perl is a highly capable, feature-rich programming language with over 22 years of development.
Perl Features :
Powerful, stable, mature, portable.
Mission critical. High Quality Code.
Object-oriented, procedural and functional.
C/C++ library interface.
Ideal web programming language.
Duct-tape of the internet, and more...
Embed into Apache.
Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems.
Vim is often called a "programmer's editor," and so useful for programming that many consider it an entire IDE. It's not just for programmers, though. Vim is perfect for all kinds of text editing, from composing email to editing configuration files.