chmod 777 is very popular ownership command.
777 simply means give all rights to the all users.
chmod 777 generally used to make operations more smoothly because it will remove all ownership related problems.
We generally use
chmod 777 some error message like below.
You don't have permission to access /bin/ on this server.
All Files and Directories Recursively
One of the most popular use case for
chmod 777 is changing given directory and child directories permission recursively. We can use
-R option for this. In this example we will change all directory named
bin and its subdirectories and files to
$ chmod -R 777 /bin
We may need root privileges. In this situations we should use
sudo to get root privileges during the command execution.
$ sudo chmod -R 777 bin
Now it provides a lot flexibility but running
chmod 777 will create security problems. This will made all given files and directories read, write and executable by all of the users. A user can change a system binary and escalate its credentials.