<Tr> <Td> </Td> <Td> This article includes a list of references, but its sources remain unclear because it has insufficient inline citations . Please help to improve this article by introducing more precise citations . (September 2014) (Learn how and when to remove this template message) </Td> </Tr> <P> In computing, the sticky bit is a user ownership access right flag that can be assigned to files and directories on Unix - like systems . </P> <P> When a directory's sticky bit is set, the filesystem treats the files in such directories in a special way so only the file's owner, the directory's owner, or root user can rename or delete the file . Without the sticky bit set, any user with write and execute permissions for the directory can rename or delete contained files, regardless of the file's owner . Typically this is set on the / tmp directory to prevent ordinary users from deleting or moving other users' files . </P> <P> The modern function of the sticky bit was introduced in 4.3 BSD in 1986, and is found in most modern Unix - like systems . </P>

What is t in file permission in linux