Which command is used to change the file contexts in a specified directory?

The command used to change the file contexts in a specified directory is "restorecon". This command is specifically designed to apply the correct security contexts to files and directories based on the system's SELinux policy. When the -R option is used, it recursively processes the specified directory, and the -v option provides verbose output, which means you will see detailed information about the actions being performed.

In the context of SELinux, file contexts play a critical role in determining the access permissions for files and processes. When you run the restorecon command, it takes the context info stored in the SELinux policy and re-applies it to the files and directories within the specified path. This ensures that files have the correct contexts, especially after they have been moved, copied, or restored from a backup.

The other commands listed do not serve the purpose of changing file contexts in the same way. For instance, while "renamecon" is used to rename the context of a file or directory, it does not apply the full context based on policy, and "setsebool" modifies boolean values which alter the SELinux policy behavior but do not deal with file contexts directly. "semanage fcontext" is used to manage file context definitions