Open Source Ruby Command Line Tools

Please upgrade to Ruby >= 2.4 before installing Guard! To install for older versions, update Bundler at least 1.12: gem update bundler and Bundler should correctly resolve to earlier gems for your given Ruby version. Guard automates various tasks by running custom rules whenever file or directories are modified. It's frequently used by software developers, web designers, writers and other specialists to avoid mundane, repetitive actions and commands such as "relaunching" tools after changing source files or configurations. Common use cases include: an IDE replacement, web development tools, designing "smart" and "responsive" build systems/workflows, automating various project tasks and installing/monitoring various system services.

Gitlab CLI is a Ruby gem and CLI tool that wraps the REST API of GitLab (including self-hosted GitLab instances) to make automation, scripting and integration simpler. It provides a Ruby DSL that abstracts away direct HTTP calls, letting developers interact with GitLab’s API in idiomatic Ruby (creating projects, merge requests, listing users, etc.). In addition to the Ruby library, there is a command-line interface which enables many GitLab operations from the terminal (or scripts) without needing to manually craft API requests. The gem supports customization of endpoint URL, private tokens, proxy and HTTP options, making it suitable for self-managed GitLab instances as well as gitlab.com. It is test-covered and built to be simple to integrate into Ruby projects or CI scripts. Being open-source under a BSD-2-Clause license, it invites reuse in organizational tooling or internal DevOps workflows. Overall, it is a useful tool for teams working with GitLab who want to automate tasks.

SIGAR (System Information Gatherer and Reporter) is a cross-platform, cross-language library and command-line tool for accessing operating system and hardware level information in Java, Perl and .NET.

krane is a command line tool that helps you ship changes to a Kubernetes namespace and understand the result. At Shopify, we use it within our much-beloved, open-source Shipit deployment app. Why not just use the standard Kubectl apply mechanism to deploy? It is indeed a fantastic tool; Krane uses it under the hood. Especially in a CI/CD environment, we need a clear, actionable pass/fail result for each deployment.

Command line tool handling steps to clean, calibrate, process, mix, master and deliver music tracks from recordings. Easy-to-use configuration files drive the complete processes.

ALX is a command-line tool for Linux, macOS and Windows to export and import the game data of Skies of Arcadia, Skies of Arcadia Legends, Eternal Arcadia (エターナルアルカディア), and Eternal Arcadia Legends (エターナルアルカディアレジェンド).

A command-line tool that reorganizes your Xcode project folder to match your Xcode groups. Make sure that your project is backed up through source control before doing anything. Execute the command on your project to have it reorganize the files on the file system:

gist(1) is a web-based code and text sharing platform created to allow developers to quickly store, share, and collaborate on snippets of code or notes. It integrates closely with Git, enabling version control, revisions, and forking, which makes it suitable for both temporary sharing and long-term storage of reusable code fragments. Users can create public or private gists, depending on whether they want to share their content openly or keep it accessible only via a link. The platform supports multiple programming languages and provides syntax highlighting for improved readability. Gists can also be embedded in websites or shared across teams, making them useful for documentation, debugging, and knowledge sharing. Because each gist is backed by a Git repository, users can track changes over time and collaborate efficiently.

puppet-reportprint is a utility for rendering Puppet reports into human-readable output that operators can scan quickly. It takes structured report data and formats it as concise summaries, highlighting changed resources, failures, and metrics that matter during triage. The goal is to help teams move from raw report artifacts to actionable insights without opening a full dashboard or writing ad-hoc parsing scripts. It is designed to fit naturally into existing Puppet workflows, making it easy to drop into pipelines or scheduled jobs that review infrastructure drift. By focusing on clear, consistent formatting, it reduces cognitive load when comparing runs across environments. It’s a pragmatic tool for teams who want faster visibility into configuration management outcomes with minimal overhead.

scrum.rb is a tool for managing scrum projects. It offers a command-line tool, a GUI and a web application for managing and publishing the artifacts of the scrum process.

Beta state! tisift: scaning folder and sort messages with given filter rules. tish: imap shell = imap command line tools. Example: # Set MsgId on Mails without one FOLDER="Archives" ; tils -I "$FOLDER" |grep "\{"|while read LINE ; do tish -x addheader "$FOLDER" "$LINE" "X-New-Header: true" ; done # Correct Date to second received header: tish date Archives PATTERN received2 # Import or export mbox tish exportmbox Archives >file.mbox tish importmbox Archives <file.mbox Written in ruby. Attention: Use on your own risc! You can damage your whole mail data!