Tools

Chmod Calculator

Calculate file permissions with visual grid and presets

Octal

0755

Symbolic

rwxr-xr-x

Command

chmod 0755 <file>

Permission Matrix

TargetRead (4)Write (2)Execute (1)Octal
Owner7
Group5
Others5

Special Permissions

Set UID

Execute as file owner

Set GID

Execute as file group

Sticky Bit

Only owner can delete

Common Presets

Quick Reference

4 — Read (r)

2 — Write (w)

1 — Execute (x)

7 = r+w+x  6 = r+w  5 = r+x

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