Of the free text editors, I would have to recommend Vim. While I do use UltraEdit at work, I wanted a free, open-source option to use at home. As with a lot of open-source software, Vim can be customized in a variety of ways to suit the type of work you're doing and your style. You can write all sorts of scripts to customize it as well as borrow those written by others in the very active Vim community. It is also convenient that once you have your customization set up, you can save them to a configuration file and apply them on another device very easily.

I can used in every *nix machine, I can use it on server via ssh, there's a community around the text editor making plugins to make the process to wirte code easy

VIM es lean, agile, and best of all, quick as my thinking speed. Yes, using VIM I don't have to memorize commands, just think and write. Better, no mouse, so my speed increases. And as a bonus VIM is highly configurable, so it can be enhanced with abbreviations, plugins and sripts that augment VIM's features beyond a text editor, converting it into a full-fledged IDE. Auto completation, Code Intel, tree views, tabs, highlighting, emmet, themes, and more.