Octal Permissions Lookup Table
Table 4.2 shows a selection of octal permissions along with their actual permissions (as shown by the ls -l command). It may help you if haven't yet been able to get your head around using octal numbers to represent absolute permissions (don't worry—you'll get used to it!). Note: the initial character representing the file type is not included.
| Octal Permissions | Actual Permissions |
|---|---|
| 400 | r-------- |
| 440 | r--r----- |
| 444 | r--r--r-- |
| 500 | r-x------ |
| 550 | r-xr-x--- |
| 555 | r-xr-xr-x |
| 600 | rw------- |
| 640 | rw-r----- |
| 660 | rw-rw---- |
| 664 | rw-rw-r-- |
| 666 | rw-rw-rw- |
| 700 | rwx------ |
| 755 | rwxr-xr-x |
| 775 | rwxrwxr-x |
| 777 | rwxrwxrwx |
| 1777 | rwxrwxrwt |
| 2444 | r--r-lr-- |
| 2555 | r-xr-sr-x |
| 4555 | r-sr-xr-x |
| 6555 | r-sr-sr-x |
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