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uname

The uname command is a standard Unix utility used to display system information. It provides details about the operating system, kernel version, and hardware architecture.

How uname Works

The uname command retrieves information from the system's kernel and displays it. It can show various pieces of information depending on the options used.

Key Features

  • Basic Usage: By default, uname displays the operating system name.

  • Options:

    • -a: Displays all available system information.

    • -s: Displays the kernel name.

    • -n: Displays the network node hostname.

    • -r: Displays the kernel release.

    • -v: Displays the kernel version.

    • -m: Displays the machine hardware name.

    • -p: Displays the processor type (if available).

    • -i: Displays the hardware platform (if available).

    • -o: Displays the operating system.

Example Usage

# Basic usage uname # Display all system information uname -a # Display the kernel name uname -s # Display the network node hostname uname -n # Display the kernel release uname -r # Display the kernel version uname -v # Display the machine hardware name uname -m # Display the processor type uname -p # Display the hardware platform uname -i # Display the operating system uname -o

Supported Systems

The uname command is available on most Unix-like operating systems, including:

  • Linux: Commonly available on various Linux distributions.

  • macOS: Included in macOS by default.

  • FreeBSD: Available as part of the base system.

  • NetBSD: Included in the base system.

  • OpenBSD: Part of the base system.

It is not natively available on Windows, but similar functionality can be achieved using third-party tools like Cygwin or Windows Subsystem for Linux (WSL).

Last modified: 19 December 2024
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