7 5 5 user group world r+w+x r+x r+x 4+2+1 4+0+1 4+0+1 = 755
The permission mode is computed by adding up the following values for the user, the file group, and for everyone else. The diagram shows how.
- Read 4 – Allowed to read files
- Write 2 – Allowed to write/modify files
- eXecute 1 – Read/write/delete/modify/directory
7 4 4 user group world r+w+x r r 4+2+1 4+0+0 4+0+0 = 744
Example Permission Modes
| Mode | Str Perms | Explanation |
|---|---|---|
| 0477 | -r–rwxrwx | owner has read only (4), other and group has rwx (7) |
| 0677 | -rw-rwxrwx | owner has rw only(6), other and group has rwx (7) |
| 0444 | -r–r–r– | all have read only (4) |
| 0666 | -rw-rw-rw- | all have rw only (6) |
| 0400 | -r——– | owner has read only(4), group and others have no permission(0) |
| 0600 | -rw——- | owner has rw only, group and others have no permission |
| 0470 | -r–rwx— | owner has read only, group has rwx, others have no permission |
| 0407 | -r—–rwx | owner has read only, other has rwx, group has no permission |
| 0670 | -rw-rwx— | owner has rw only, group has rwx, others have no permission |
| 0607 | -rw—-rwx | owner has rw only, group has no permission and others have rwx |
View Permissions, Users, and Group
To view the permissions and who the user owner is type in the following command in terminal:
ls -lThis will give you the results in the image below. (notes have been added to describe what each column is for.
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