CHMOD Lab: Linux Permissions
Utilities
Free · Designed for iPad
The easiest way to learn and calculate Linux file permissions. Master Octal and Symbolic modes instantly.
Stop guessing Linux file permissions. CHMOD Lab is the ultimate interactive sandbox and calculator for developers, SysAdmins, and students who want to master the command line.
Whether you are configuring a web server, debugging a script, or studying for your Linux certification, CHMOD Lab bridges the gap between confusing octal numbers (755) and symbolic notation (rwxr-xr-x).
FEATURES:
• Interactive Calculator: Toggle permissions instantly. Tap "Read," "Write," or "Execute" and watch the Octal and Symbolic codes update in real-time.
• Reverse Lookup: Type in a code like "644" and see exactly which permissions are granted.
• Visual Sandbox: See permissions visualized to understand "who" can do "what" before you run the command.
• Cheat Sheet: Built-in reference guides for common permission patterns.
Master the command line. Download CHMOD Lab today.
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The developer, Guy Miller, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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Information
- Seller
- Guy Miller
- Size
- 1.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © (C) 2026 PyxelBlaze