| Octal digit | Permission(s) granted | Symbolic |
|---|---|---|
| 0 | None | [u/g/o]-rwx |
| 1 | Execute permission only | [u/g/o]=x |
| 2 | Write permission only | [u/g/o]=w |
| 3 | Write and execute permissions only: 2 + 1 = 3 | [u/g/o]=wx |
| 4 | Read permission only | [u/g/o]=r |
| 5 | Read and execute permissions only: 4 + 1 = 5 | [u/g/o]=rx |
| 6 | Read and write permissions only: 4 + 2 = 6 | [u/g/o]=rw |
| 7 | All permissions: 4 + 2 + 1 = 7 | [u/g/o]=rwx |