setuid, setgid and sticky bit

In this section, we will show you everything you need to know about the special file permission flags, setid, setgid, and the sticky bit.

setuid

Now let's talk about setuid, setgid, and the sticky bit. As we work with users, groups, and file permissions, let's first log in as root.

First, let's create a new user, group, and the copy of the whoami command locally to see what's going on with the setuid flag:

Next, let's change the file owner and group owner of this command to awesome_user and awesome_group:

Setting the setuid, setgid, and the sticky bit can also be done using octal notations. You already know about them from the file permissions chapter. These special...