Changing CHMOD permissions in Linux file systems is an important task. Many administrators use the common Octal notation to quickly assign permissions to the User, Group, and Other accounts in a single command.
| User (u) | Group (g) | Other (o) | |
|---|---|---|---|
| Read (r) | 4 | 4 | 4 |
| Write (w) | 2 | 2 | 2 |
| Execute (x) | 1 | 1 | 1 |
| Octal | Permissions |
|---|---|
| 777 | rwxrwxrwx |
| 755 | rwxr-xr-x |
| 644 | rw-r–r– |
| 700 | rwx—— |
| 750 | rwxr-x— |