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The uname command

The uname command lets you print out system information and defaults to outputting the kernel name.

Syntax:

$ uname [OPTION]

Examples

1. Print out all system information.

$ uname -a

2. Print out the kernel version.

$ uname -v

Options

Short Flag	Long Flag	Description
-a	--all	Print all information, except omit processor and hardware platform if unknown.
-s	--kernel-name	Print the kernel name.
-n	--nodename	Print the network node hostname.
-r	--kernel-release	Print the kernel release.
-v	--kernel-version	Print the kernel version.
-m	--machine	Print the machine hardware name.
-p	--processor	Print the processor type (non-portable).
-i	--hardware-platform	Print the hardware platform (non-portable).
-o	--operating-system	Print the operating system.