For systems using the systemd method, what command is used to view or change hostname information?

The command to view or change hostname information on systems using the systemd method is hostnamectl. This command is part of the systemd suite and provides a modern interface for managing system settings, including the hostname.

When you use hostnamectl, you can not only display the current hostname but also set a new hostname in a straightforward manner. It allows you to specify static, transient, and pretty hostnames, making it versatile for various use cases. This capability is particularly important in a systemd environment where traditional methods might not offer the same level of integration or functionality.

The other options, while related to hostname management, either belong to older systems or don't function within the systemd framework, making them less appropriate in this context.