Batch Renamers

F2 – Command-line batch renaming tool

F2 is a cross-platform command-line tool for batch renaming files and directories quickly and safely.

The author recommends using the tool for the following reasons:

  • Organise your filesystem through batch renaming so that your files and directories can have a consistent naming scheme.
  • Comprehensive set of renaming options, and scales well from trivial string replacements to more complex operations involving regular expressions.
  • Prioritises correctness and safety by ensuring that a renaming operation does not result in conflicts or errors. It runs several validations before carrying out a renaming operation, and provides an easy way to automatically fix any detected conflicts.
  • Supports all the standard renaming recipes including (but not limited to) string replacement, insertion of text as a prefix, suffix or other position in the file name, stripping a set of characters, changing the case of a set of letters, using auto incrementing numbers, swapping parts of the file name, etc.
  • Provides several built-in variables for added flexibility in the renaming process. These variables are based on file attributes such as Exif information for images, and ID3 tags for audio files. F2 also supports utilising tags from the popular exiftool which should cover most use cases.
  • Revert any renaming operation performed with the program. This means you don’t have to worry about making a mistake because you can always get back to the previous state.
  • Good test coverage
  • Cross-platform support – runs under Linux, macOS, and Windows.
  • Good documentation.

F2 is free and open source software.

Features include:

  • Safe and transparent. F2 uses a dry run mode by default so you can review the exact changes that will be made to your filesystem before making them.
  • Cross-platform with full support for Linux, macOS, and Windows. It also runs on less commonly-used platforms, like Termux (Android).
  • Extremely fast, even when working with a large amount of files.
  • Supports the chaining of several consecutive renaming operations before a final output is produced.
  • Automatically detects potential conflicts such as file collisions, or overrides and reports them to you.
  • Provides several built-in variables for the easier renaming of certain file types.
  • Provides easy access to all ~25,000 tags in exiftool for maximum flexibility in renaming.
  • Supports find and replace using regular expressions, including capture groups.
  • Ignores hidden directories and files by default.
  • Respects the NO_COLOR environmental variable.
  • Supports limiting the number of replaced matches, and you can start from the beginning or end of the file name.
  • Supports recursive renaming for both files and directories.
  • Supports renaming only files, or only directories, or both.
  • Supports using an ascending integer for renaming (e.g 001, 002, 003, etc.), and it can be formatted in several ways.
  • Supports undoing the last renaming operation in case of mistakes or errors.
  • Supports renaming from a CSV file.
  • Extensive documentation and examples for each option that is provided.

Developer: Ayooluwa Isaiah
License: MIT License

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F2 is written in Go. Learn Go with our recommended free books and free tutorials.

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