> For directories, 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.
kan@h370:~$ ls -ld /tmp
drwxrwxrwt 26 root root 32768 Aug 30 20:51 /tmp
ka@h370:~$
AFAIK 't' means yes, you have it.