Aba is a software tool that enables users to replace text in multiple files with ease. It facilitates the correction of errors, replacement of banners and copyright notices, renaming of methods, and other text-related tasks in web pages.

One significant feature of Aba is its support for regular expression search, including lookaround, non-greedy matching, and other advanced features. It also brings in Unicode support (UTF-8 and UTF-16), search history and favorites, undo for any replacement, and syntax highlight for regular expressions, HTML, CSS, JS, and PHP files.
Overall, Aba is a versatile tool that will enable users to manage their text-processing tasks efficiently. Whether you need to search and replace a specific text on multiple pages or replace various lines on a large file, Aba is the software for you. It is a must-have software in any developer's tool suite. Try it out today and transform your text-processing experience!
Version 2.3: C and Python syntax highlight. Minimizing ?? and atomic groups in regular expressions.
Version 2.5.6: Search and replace from the command line, skipping subdirectories, and sorting the found files.