chmod +t test/
shows as t in last bit
ls -ld test drwxrwxr-t 2 user user 4096 Oct 21 14:11 test
This next bit isn’t actually the sticky bit, but rather is setuid or gid.
Use this to force all files under a directory to inherit the parent permissions;
eg;
chmod g+s /var/www/html
this changes
drw-r----- 1 root apache /var/www/html
to
drw-r-s--- 1 root apache /var/www/html
now any files under /var/www/html will be in the group apache