Linux Terminal Command: hostname

The hostname command is an essential tool in System Information & Hardware. In this tutorial, we will explore what hostname does, look at everyday examples, and cover advanced options to supercharge your command-line workflow.

Concept & Explanation

The hostname command retrieves or configures the network identification name of the local computer system.

Common Options & Syntax

hostname [options] [arguments]

Here are the most common flags used with hostname:

Simple Usage: Basic default commands.
Detailed View: Shows diagnostic information.
Advanced Actions: Can chain parameters for scripting.

1. Interactive Example (Simple)

Here is how most people run the command:

# Example
hostname

What it does: Prints the current hostname of the machine.

2. Power-User Example (Advanced)

For scripting and advanced diagnostics, use this configuration:

# Advanced
hostname -I

What it does: Prints all network IP addresses assigned to the active machine interface.

⚙️ Warning & Common Pitfalls

[!WARNING] Setting a hostname with hostname <new_name> only updates it temporarily. For persistence, use hostnamectl set-hostname <name> on systemd platforms.

Here are some related posts on cli_tty1 you might want to check out:

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free : Display amount of free and used memory in the system.