gedit

Official text editor of the GNOME desktop environment. Has syntax highlighting and is suitable for programming, with support for several languages. It is extensible with plugins. Currently it features: * Full support for internationalized text (UTF-8) * Configurable syntax highlighting for various languages (C, C++, Java, HTML, XML, Python, Perl and many others) * Undo/Redo * Editing files from remote locations * File reverting * Print and print preview support * Clipboard support (cut/copy/paste) * Search and replace * Go to specific line * Auto indentation * Text wrapping * Line numbers * Right margin * Current line highlighting * Bracket matching * Backup files * Configurable fonts and colors * A complete online user manual