# Install massren with Homebrew, Nix Easily rename multiple files using your text editor. Version 1.5.7 via Homebrew; verified 2026-07-29. Also installable with nix: nix profile install nixpkgs#massren. ## Install ```sh sudo av install brew:massren ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install massren ``` Evidence: local Homebrew formula metadata ### Linux - Nix (92%): ```sh nix profile install nixpkgs#massren ``` Evidence: nixpkgs package indexes: pkgs/by-name/ma/massren/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:massren - **Package manager:** Homebrew - **Version:** 1.5.7 - **Source summary:** Easily rename multiple files using your text editor - **Homepage:** - **Repository:** - **Last updated:** 2026-07-29T17:04:51+02:00 - **Generated:** 2026-08-03T19:37:03+00:00 ## Executables - massren (alias) ## Install behavior - Bottle: not available ## Freshness - Page generated: 2026-08-03 - Package-manager version: 1.5.7 ## Project history and usage massren is a small command-line bulk rename tool built around a Unix-friendly idea: open a generated list of filenames in the user's normal text editor, let the user edit the names, then apply the diff as rename operations. ### Project history The project README describes massren as an answer to the awkwardness of command-line bulk renamers that require escaping regular expressions or learning a custom rename syntax. Its public release history includes a v1.0.1 release in 2014, and the README copyright range runs from 2013 through 2025. Over time the tool gained the practical safety features expected from a bulk renamer: dry-run mode, undo support, checks that the file list did not change unexpectedly while being edited, and support for moving files into subdirectories. ### Adoption history massren stayed a niche but packageable CLI because it solves a common shell-user workflow without becoming a full file manager. The batch input records Homebrew and Nix packaging, matching a tool whose main audience is users who already install small terminal utilities from package managers. ### How it is used Typical use is to run `massren` in a directory, edit the generated list in an editor such as Vim, Emacs, Sublime Text, or Notepad, save it, and let massren rename only the changed lines. The README also documents `--dry-run`, `--undo`, and `--config` for selecting the editor and behavior such as trash usage. ### Why package nerds care For package-manager users, massren is interesting because it composes with the editor muscle memory they already have instead of shipping its own rename language. It is the kind of small, sharp CLI that remains useful in Homebrew/Nix collections even without a large surrounding ecosystem. ### Timeline - 2013: README copyright range begins for Laurent Cozic's massren. - 2014: GitHub release v1.0.1 is published. - 2024: GitHub release v1.5.7 is published. - 2025: README copyright range still includes active project maintenance. ### Related projects - massren sits near other bulk rename tools, but its closest conceptual dependency is the user's chosen text editor. It also overlaps with shell workflows that use `vidir`, `rename`, or scripted `mv` loops. ### Sources - - - - - source_facts.package-manager ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Other Package-Manager Records - Nix - massren: normalized package name match | nixpkgs package indexes: pkgs/by-name/ma/massren/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Combined YAML source View the package source record on GitHub. [combined/massren.yml](https://github.com/mxcl/pkgdb/blob/main/combined/massren.yml) ## Sources - pkg.so package database - Geiger risk classifier - curated package history - pkgdb category and tag curation - external package-manager database matches - cross-ecosystem install command graph