F2 is a command-line tool designed for batch renaming files across multiple platforms, including Windows, macOS, and Linux. Users appreciate its lightweight functionality and the ability to perform complex renaming operations through a simple interface. The tool supports various naming patterns and rules, making it a versatile choice for developers and system administrators. Users have expressed a desire for further enhancements, such as improved user documentation and additional GUI options. Overall, F2 fills a crucial gap in file management for those who prefer command-line efficiency over graphical interfaces.