Unix chmod Calculator
Octal and symbolic file permissions.
Owner
6 (rw-)
Group
4 (r--)
Other
4 (r--)
chmod
644
rw-r--r--
Common patterns
- 755 - executable script (rwxr-xr-x)
- 644 - regular file (rw-r--r--)
- 700 - private (rwx------)
- 600 - private file (rw-------)
- 777 - everyone everything (rarely correct)
- 444 - read-only for all (r--r--r--)
Unix permissions: 4 read + 2 write + 1 execute, applied to owner / group / other. 755 is the default for executables. 644 for regular files. Avoid 777 - it lets anyone overwrite the file.
About
Tick the read, write, execute permissions for owner, group, and other. The tool returns the chmod octal (755) and symbolic (rwxr-xr-x) forms with a copy-ready command.
How to use
- Tick the boxes you want.
- Copy chmod 755 file (or your value).
FAQ
What about setuid / setgid / sticky?+
Those add a fourth digit (4 setuid, 2 setgid, 1 sticky) prepended to the standard three. This calculator covers the standard 755-style permissions.