Unix Permission Calculator

Convert between numeric and symbolic file permissions

Visual Permission Selector

Read

Write

Execute

Owner

Group

Others

Input Converter

Numeric Format (e.g., 755)

Symbolic Format (e.g., rwxr-xr-x)

Results

Numeric: 755

Symbolic: rwxr-xr-x

chmod Command:

chmod 755 filename

Common Permission Presets

Understanding Unix Permissions

Permission Bits

r (4) - Read permission
w (2) - Write permission
x (1) - Execute permission

User Classes

Owner - The file's owner
Group - Users in the file's group
Others - All other users