Uname Command

The command ‘uname‘ displays the information about the system

This command is used to display the information such as

kernel name,hostname , kernel release date , kernel version , operating system , hardware platform ( bit of CPU , it is based on CPU instruction set ) , machine hardware ( this is the number of bit or architecture of motherboard or data bus support )

1. -a option: It prints all the system information in the following order: Kernel name, network node hostname, kernel release date, kernel version, machine hardware name, hardware platform, operating system

eg : uname -a

2. -s option: It prints the kernel name.

eg : uname -s

3. -n option: It prints the hostname of the network node(current computer).

eg : uname -n

4. -r option: It prints the kernel release date.

eg : uname -r

5. -v option: It prints the version of the current kernel.

eg : uname -v

6. -m option: It prints the machine hardware name.

eg uname -m

7. -p option: It prints the type of the processor.

eg uname -p

8. -i option: It prints the platform of the hardware.

eg uname -i

9. -o option: It prints the name of the operating system.

eg : uname -o

If you want to get the information of the operating system . then cat the following file

cat /etc/os-release

output:

• NAME="Ubuntu"
• VERSION="18.04.3 LTS (Bionic Beaver)"
• ID=ubuntu
• ID_LIKE=debian
• PRETTY_NAME="Ubuntu 18.04.3 LTS"
• VERSION_ID="18.04"
• HOME_URL="https://www.ubuntu.com/"
• SUPPORT_URL="https://help.ubuntu.com/"
• BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
• PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
• VERSION_CODENAME=bionic
• UBUNTU_CODENAME=bionic