Permissions Calculator

Visual tool to calculate and understand Unix file permissions (chmod).

Select Permissions

Owner

Group

Others (Public)

Result

Octal Notation

Symbolic Notation

chmod Command

Explanation

Owner:
Group:
Others:

Common Permissions

Features

  • Visual interface to understand Unix file permissions.
  • Shows octal (755), symbolic (rwxr-xr-x), and chmod command formats.
  • Explains what each permission means for owner, group, and others.
  • Quick presets for common permission patterns.

How to Use

  1. Check or uncheck the permission boxes for Owner, Group, and Others.
  2. View the calculated octal permission (e.g., 755) on the right.
  3. Copy the chmod command to use in your terminal.
  4. Or click a common permission preset for quick setup.