linux:special_permissions_minihowto
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Meanings
Special Permissions | On a File | On a Directory |
---|---|---|
SUID or Set User ID | A program is executed with the file owner's permissions (rather than with the permissions of the user who executes it). | Files created in the directory inherit its UID. |
SGID or Set Group ID | he effective group of an executing program is the file owner group. | Files created in the directory inherit its GID. |
Sticky (bit) | A program sticks in memory after execution. | Any user can create files, but only the owner of a file can delete it. |
Reading
Permissions | Meaning |
---|---|
--S------ | SUID is set, but user (owner) execute is not set. |
--s------ | SUID and user execute are both set. |
-----S--- | SGID is set, but group execute is not set. |
-----s--- | SGID and group execute are both set. |
--------T | Sticky bit is set, bot other execute is not set. |
--------t | Sticky bit and other execute are both set. |
Applying
linux/special_permissions_minihowto.1337070653.txt.gz · Last modified: 2012/05/15 08:30 by dodger