hostname - System Hostname Management

The hostname module provides straightforward subcommands to retrieve or update the system's hostname, supporting both long and short formats.

When to Activate

• When identifying the system name for scripts or documentation.
• When changing the system's identity (requires elevated privileges).

Core Principles & Rules

• Formats: Support for --long (FQDN) and --short formats.
• Permissions: Changing the hostname with set requires sudo privileges.

Patterns & Examples

View Hostname

# Display the full system hostname
x hostname
# Display only the short hostname
x hostname --short

Set Hostname

# Change the system hostname to a new value
x hostname set my-new-server

Checklist

• Confirm if the long or short format is needed.
• Ensure the user has the required permissions if setting a new name.