Chmod Calculator

Visual Unix file permissions calculator

permissions

Quick reference: Permissions format: Owner-Group-Other
> Octal: 754 = Owner(7), Group(5), Other(4)
> Symbolic: -rwxr-xr-- = File type + Owner(rwx) + Group(r-x) + Other(r--)
Enter 3 or 4 digit octal permission value like 755 or 0755
Enter symbolic notation like -rwxr-xr-x

checkboxes

Read (r)
Write (w)
Execute (x)
Owner
Group
Other

presets

special bits

Setuid (4)
Run as file owner
Setgid (2)
Run as file group
Sticky (1)
Restrict deletion

result

Octal notation

755

Symbolic notation

-rwxr-xr-x

chmod command

chmod 755 filename

octal reference

0
---
1
--x
2
-w-
3
-wx
4
r--
5
r-x
6
rw-
7
rwx

umask calculator

Calculate default file and directory permissions based on umask value.

Enter a umask value in octal notation to calculate default file and directory permissions

Default file permissions

644
-rw-r--r--

Default directory permissions

755
drwxr-xr-x