Linux permission mode calculator, Richard M. Rutkowski

Read, Write, Execute Calculator

Toggle owner, group, and public permissions. Add setuid, setgid, and sticky bits. Convert from numeric mode like 755 or 4755 and back again. Designed to fit an iPhone screen or expand cleanly on a PC.

O

Owner

G

Group

P

Public

Special bits

Numeric mode

Enter 3 or 4 octal digits
3-digit mode
Full mode

Symbolic mode

Equivalent symbolic permissions
Click to copy

Quick reference

Read
4
Write
2
Execute
1
Special
setuid=4, setgid=2, sticky=1