what does "t" is /tmp permissions mean

Paul Smith paul.j.smith0 at gmail.com
Thu Mar 26 15:57:58 UTC 2015

 Ernie Luzar  wrote:
> doing "ls -l /" shows that the /tmp directory has these permissions
> drwxrwxrwt
> What does the "t" under other user mean?
> Where can I find documentation on permissions?

Section 4.4 in the handbook is about permissions.

t is the sticky bit.
"When the sticky bit is set on a directory, it allows file deletion
only by the file owner. This is useful to prevent file deletion in
public directories, such as /tmp, by users who do not own the file."

Paul Smith

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