{"id":110121,"date":"2022-08-26T11:00:42","date_gmt":"2022-08-26T05:30:42","guid":{"rendered":"https:\/\/data-flair.training\/blogs\/?p=110121"},"modified":"2022-08-26T12:52:18","modified_gmt":"2022-08-26T07:22:18","slug":"uname-command-in-linux","status":"publish","type":"post","link":"https:\/\/data-flair.training\/blogs\/uname-command-in-linux\/","title":{"rendered":"Uname Command in Linux"},"content":{"rendered":"

In this article, you will learn everything about Linux uname command. We will be looking into what the uname tool is, a brief history of the command, the syntax we use for the uname command, and the different options we use with the uname command. In the end, we will be looking at some useful practical examples of the uname command.<\/p>\n

What is uname command in Linux?<\/h3>\n

The uname is an abbreviation for \u201cUNIX name\u201d. Uname is a command-line tool in Linux-based operating systems that prints or displays information about the kernel, system architecture, operating system, hardware, version information, and more.<\/p>\n

It cannot get any more straightforward: the uname command displays information about the system. It is that simple!<\/p>\n

History of Linux uname tool<\/h3>\n

The uname command made its first appearance in PWB\/UNIX. The GNU version of the command is included in the packages Coreutils and sh-utils. It is not a standalone program. David Mackenzie wrote and developed the uname command. The uname command is also available in Windows systems as a part of the GnuWin32 project.<\/p>\n

Syntax of Linux uname command<\/h3>\n

Just like its definition, the syntax of the uname command is also very straightforward and simple:<\/p>\n

uname <options><\/pre>\n
If we simply run the uname command with no options at all, it only prints the name of the core operating system.<\/p>\n
 <\/p>\n
 <\/p>\n
\"running<\/a><\/p>\n
Options available with Linux uname command<\/h3>\n
In the syntax, we have seen that there is a field for options that the uname accepts. When we pair the uname command with different options, uname prints different pieces of information about the system. Let us look at the options used with the uname command:<\/p>\n
1. -s<\/h4>\n
This option prints the kernel name. You can also write this option as \u201c–kernel-name\u201d.<\/p>\n
2. -n<\/h4>\n
This option prints the node name of the system. Node means hostname. The hostname is the name the system uses while communicating over a network. You can also write this option as \u201c–node-name\u201d<\/p>\n
3. -r<\/h4>\n
This option prints the kernel release. You can also write this option as \u201c–kernel-release\u201d.<\/p>\n
4. -v<\/h4>\n
This option prints the version of the kernel in your system. You can also write this option as \u201c–kernel-version\u201d<\/p>\n
5. -m<\/h4>\n
This option prints the name of the hardware in the machine. You can also write this option as \u201c–machine\u201d.<\/p>\n
6. -p<\/h4>\n
This option prints the architecture of the process. You can also write this option as \u201c–processor\u201d.<\/p>\n
7. -i<\/h4>\n
This option prints information about the hardware platform. You can also write this option as \u201c–hardware-platform\u201d.<\/p>\n
8. -o<\/h4>\n
This option prints the name of the operating system. In Linux systems, the operating system name is \u2018GNU\/Linux\u2019. You can also write this option as \u201c–operating-system\u201d.<\/p>\n
9. -a<\/h4>\n
This option prints all of the information related to the system. If you wanted to print all of the information i.e. kernel name, system\u2019s node name, kernel release, kernel version, hardware, and operating system, instead of typing the commands together as \u2018-snrvmo\u2019, you can just use the option \u201c-a\u201d. You can also write this option as \u201c–all\u201d.<\/p>\n
10. –version<\/h4>\n
This option prints information about the version of the uname.<\/p>\n
\"version<\/a><\/p>\n
11. –help<\/h4>\n
This option prints the help menu which consists information about the usage and option of the uname command. You can use this option whenever you get stuck and need help regarding the uname command.<\/p>\n
\"help<\/a><\/p>\n
Now that we have laid down the fundamentals let us look at some practical commands of the uname command that helps us display different information about the system.<\/p>\n
Displaying the name of the kernel<\/h3>\n
To display the name of the kernel in your system, use the options \u201c-s\u201d or \u201c–kernel-name\u201d with the uname command as follows :<\/p>\n
uname -s\r\nuname --kernel-name<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the name of the node<\/h3>\n
To display the name of the node your system uses while communicating over a network, use the options \u201c-n\u201d or \u201c–node-name\u201d with the uname command as follows :<\/p>\n
uname -n\r\nuname --node-name<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the kernel release<\/h4>\n
To display the name of the kernel release of your system, use the options \u201c-r\u201d or \u201c–kernel-release\u201d with the uname command as follows :<\/p>\n
uname -r\r\nuname --kernel-release<\/pre>\n
Displaying the kernel version<\/h3>\n
To display the version of the kernel in your system, use the options \u201c-v\u201d or \u201c–kernel-version\u201d with the uname command as follows :<\/p>\n
uname -v\r\nuname --kernel-version<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the machine\u2019s hardware name<\/h3>\n
To display the name of the hardware in the machine., use the options \u201c-m\u201d or \u201c–machine\u201d with the uname command as follows :<\/p>\n
uname -m\r\nuname --machine<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the process architecture<\/h3>\n
To display the process architecture, use the options \u201c-p\u201d or \u201c–processor\u201d with the uname command as follows :<\/p>\n
uname -p\r\nuname --processor<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the hardware platform information<\/h3>\n
To display the information about the hardware platform, use the options \u201c-i\u201d or \u201c–hardware-platform\u201d with the uname command as follows :<\/p>\n
uname -i\r\nuname --hardware-platform<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying the name of the operating system<\/h3>\n
To display the name of the operating system your system uses, use the options \u201c-o\u201d or \u201c–operating-system\u201d with the uname command as follows :<\/p>\n
uname -o\r\nuname --operating-system<\/pre>\n
\"displaying<\/a><\/p>\n
Displaying all the information<\/h3>\n
To display all the above-mentioned information ( kernel name, system\u2019s node name, kernel release, kernel version, hardware, and operating system), use the options \u201c-a\u201d or \u201c-all\u201d with the uname command as follows:<\/p>\n
uname -a\r\nuname --all<\/pre>\n
\"displaying<\/a><\/p>\n
Combining options<\/h3>\n
We can also combine different options to provide specific outputs. Suppose you don\u2019t want all of the information but only want information regarding the system name, kernel release, kernel version, and operating system, you can combine each of the options as follows:<\/p>\n
uname -srvo<\/pre>\n
 <\/p>\n
\"displaying<\/a><\/p>\n
Similarly, if you want to print information regarding the processor, kernel version, and hostname, you can combine each of the options as follows:<\/p>\n
uname -pvi<\/pre>\n
\"displaying<\/a><\/p>\n
Summary<\/h3>\n
As you have seen, the uname is a really straightforward simple tool\/command that helps in displaying various information about the system like the kernel release, kernel version, system name, node name, operating system, and other information regarding the hardware.<\/p>\n
You have learned what the uname tool is, a brief history of the command, the syntax we use for the uname command, the different options we use with the uname command, and some useful practical examples of the uname command.<\/p>\n","protected":false},"excerpt":{"rendered":"
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