Linux Command Handbook

Find the Linux command you need, when you need it. Linux Command Handbook is an offline reference for Linux learners, developers, and system administrators. Browse 4,966 main command entries and 7,403 reference documents, with options, examples, and practical task guides. SEARCH BY COMMAND OR TASK Search command names, purposes, and document text. Try tasks such as "port usage", "large files", or "filter logs". Search a supported subcommand with arguments, such as "kubectl get pods", to open its reference directly. Results show the matched document title and context. BROWSE 23 CATEGORIES Explore files and directories, text and logs, processes, networking, storage, packages, containers, databases, security, version control, languages, builds, testing, and more. Filter by initial letter or edited guides. The English interface prioritizes 6,782 English quick references, with 621 original Chinese manuals available as supplementary reading. Original community documents retain their source language. LEARN THROUGH PRACTICAL TASKS 30 task guides explain prerequisites, steps, expected results, and what to check if a result differs. Common commands include option explanations and examples to help you choose an approach. FOLLOW YOUR SYSTEM LANGUAGE Chinese system languages use the Chinese interface. All other system languages use English. Navigation, task guides, option explanations, and edited examples follow the interface language. KEEP YOUR USEFUL REFERENCES Bookmark commands, tasks, and individual reference documents. Resume reading from your saved position. Search and filter saved items, browse all 50 recent items, undo removal, and export the current list with system sharing. Favorites and reading preferences stay on your device. Search history is off by default and can be enabled or cleared in Settings. READ COMFORTABLY ON IPHONE Choose light, dark, or system appearance. Adjust body and code text sizes separately, with code wrapping. Find text within a document, jump between matches or headings, and learn template symbols. Read formatted documents or raw text. Copy or share code for use in your own terminal. CORE FEATURES WORK OFFLINE No account is required to search, read, or save favorites. Reference documents and license texts are bundled with the app. Opening an external source link requires a network connection. Usage notes This app provides reference material and copies text; it does not execute commands or connect over SSH. Tools and options vary by distribution, installation, and version. Some references include Unix/BSD comparisons. Check the environment, targets, options, and effects before using an example.