Chmod Calculator
Visual Unix file permission generator — numeric & symbolic modes
0 permissions calculated
| Read (r) | Write (w) | Execute (x) | |
|---|---|---|---|
| Owner | |||
| Group | |||
| Other |
Numeric
755
Symbolic
rwxr-xr-x
chmod
755
filename
Common Presets
644
rw-r--r--
Default files
755
rwxr-xr-x
Default directories / scripts
777
rwxrwxrwx
Full access (dangerous)
600
rw-------
SSH keys / secrets
700
rwx------
Private directories
750
rwxr-x---
Group-accessible dir
664
rw-rw-r--
Group-writable files
444
r--r--r--
Read-only for everyone
400
r--------
Owner read-only (PEM keys)
666
rw-rw-rw-
Read/write all (dev only)
775
rwxrwxr-x
Shared group directories
555
r-xr-xr-x
Read & execute only
Permission Reference
r Read
View file contents or list directory entries. Octal value: 4
w Write
Modify file contents or add/remove files in a directory. Octal value: 2
x Execute
Run the file as a program or enter the directory (cd). Octal value: 1
Owner = the file creator |
Group = users in the same group |
Other = everyone else
Each digit = r(4) + w(2) + x(1). Example: 7 = 4+2+1 = rwx, 5 = 4+0+1 = r-x
Each digit = r(4) + w(2) + x(1). Example: 7 = 4+2+1 = rwx, 5 = 4+0+1 = r-x
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