directory permission.

[peterchu]

I have a directoy permission is with "t" , but I still remove the directory , what is the usage for permission "t" ? thx.


drwsrwsrwt 2 root root 4096 Aug 24 14:59 temp

[Sunil Sharma_1 · Accepted solution]

Hi,

t stands for sticky bit. when sticky bit is set for any directory then any file inside that directory can be deleted by owner of that file or root even if it has 777 permission.

Sunil

[Michael Tully]

The 't' means sticky bit. This is a common occurance on directories like /tmp and /var/tmp where anyone can write to the directory, but you can only remove your own files and not files owned by others.

quote from the chmod man page
If the sticky bit is set on a directory, files inside the directory
may be renamed or removed only by the owner of the file, the owner of
the directory, or the superuser (even if the modes of the directory
would otherwise allow such an operation).

[Victor Fridyev]

Hi,

This bit should permit files removing in this directory only to the files owner.


RTFM for chmod
chmod(1)


t Add or delete the save-text-image-on-file-
execution (sticky bit) permission. Useful
only if u is expressed or implied in who.
See chmod(2).

HTH

[Franky_1]

Hi,

it's the so called "Sticky Bit" which means that any file inside can only be deleted by the owner respectively by root (even when set to 777)

Regards

Franky