The “uname -a” command is used to print detailed system information, including the kernel name, network node hostname, kernel release, kernel version, machine hardware name, and operating system.
When you run the “uname -a” command in a terminal or command prompt, it will display a string containing all of this information.
For example, a possible output of “uname -a” could be:
Linux myhostname 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 GNU/Linux
This output includes the kernel name (Linux), the hostname (myhostname), the kernel release (4.15.0-54-generic), the kernel version (#58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019), the machine hardware name (x86_64), and the operating system (GNU/Linux).
The “uname -a” command is useful for providing comprehensive system information and is often used for diagnostic purposes or to determine the specific configuration of a system.