Simplify Linux file and directory permissions with the Chmod Calculator. Easily calculate and manage CHMOD settings for user, group, and public access in a user-friendly interface. Chmod Calculator is a free utility to calculate the numeric (octal) or symbolic value for a set of file or folder permissions in Linux servers.
How to use
Check the desired boxes or directly enter a valid numeric value (e.g. 777) or symbolic notation (e.g. rwxrwxrwx) to see its value in other formats.
File Permissions
File permissions in Linux file system are managed in three distinct user classes: user/owner, group and others/public. Each class can have read, write and execute permissions. File permission can be represented in a symbolic or numeric (octal) format.
Every file and directory in Linux is associated with a user. The user permissions define actions the owner can perform: reading (r), writing (w), and executing (x).
Users in Linux can be part of one or more groups. Group permissions specify actions users in the same group can take, including read, write, and execute.
Apply to users not in the Owner or group categories. These permissions determine actions any user can perform on the file or directory.
Each permission category is represented by a combination of three letters: r, w, and x. For instance, "rwx" represents full permissions, while "rw-" allows read and write but not execute.
Simplify Linux permission calculations with a user-friendly interface. Input numeric or symbolic notation for quick results, eliminating the need for manual calculations.
Supports both numeric and symbolic notation, catering to users' preferences and comfort with different styles.
Visually represents calculated permissions, aiding in quick identification of potential issues or inconsistencies.
Automates permission calculation, saving time for Linux users dealing with multiple files or directories.
Increases accessibility by providing a user-friendly interface, empowering users of all expertise levels to manage permissions effectively.
Owner, Group, and Public Sections:
Select Permissions:
Generate Notation:
Copy and Use:
Easy Retrieval: Retrieve previously calculated permissions without re-entering data.
Historical Tracking: Maintain a record of permission calculations for auditing or troubleshooting.
Privacy and Security: Store data locally for enhanced privacy and security.
Offline Accessibility: Access stored data even offline for uninterrupted usability.
User Convenience: Conveniently retrieve and reference previous calculations.
What is CHMOD 777?
What is Chmod 755?
How do I use chmod to Change Permissions?
Where can I find online Chmod Calculators?
Can I use the Permission Calculator to modify multiple permissions at once?
Are there Alternatives to using a permission calculator?
Is the Permission Calculator compatible with all Unix-like systems?
Is it Possible to reverse-engineer permissions using the calculator?
The Chmod Calculator is a powerful tool for simplifying Linux permission calculations. Its user-friendly interface and data storage feature enhance convenience, saving time and providing a reliable reference for efficient Linux permission management. Embrace the Chmod Calculator to streamline your Linux permission tasks today!