RJ TextEd is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Visual Studio Code, which is free. If that doesn't suit you, our users have ranked more than 100 alternatives to RJ TextEd and many of them are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to RJ TextEd are Sublime Text (Free Personal), Vim (Free, Open Source), VSCodium (Free, Open Source) and Geany (Free, Open Source).
Aptana Studio is a complete web development environment that combines powerful authoring tools with a collection of online hosting and collaboration services that help you and your team do more. Includes support for PHP, CSS, FTP, and more...
ReText is a simple text editor for Markdown and reStructuredText documents with syntax highlighting and optional live preview. It is written in Python using Qt libraries, able to run on any platforms (Linux and BSD are officially supported).