How to find out what version of Linux?

How to Find Out What Version of Linux?

Step 1: Check Your System Information

The first step to finding out what version of Linux you’re running is to check your system information. This can be done by running a command in the terminal or command prompt. Here are the steps:

• Open a terminal or command prompt on your computer.
• Type uname -a and press Enter.
• This command will display information about your system, including the kernel version, distribution, and other details.

Kernel Version

The kernel version is the core of the Linux operating system. It determines the underlying architecture and features of the system. Here are some key points to look for:

• Kernel Version: The kernel version is usually displayed as Linux 4.15.0-42-generic or Linux 5.4.0-42-generic. You can check the kernel version by running uname -r.
• Kernel Release: The kernel release is the version of the kernel, such as 4.15 or 5.4. You can check the kernel release by running uname -r.
• Kernel Build Date: The kernel build date is the date when the kernel was built, such as 2019-01-01. You can check the kernel build date by running uname -a.

Distribution and Version

The distribution and version are the operating system and kernel combination. Here are some key points to look for:

• Distribution: The distribution is the name of the operating system, such as Ubuntu or Fedora. You can check the distribution by running lsb_release -a.
• Distribution Version: The distribution version is the version of the operating system, such as Ubuntu 20.04. You can check the distribution version by running lsb_release -a.
• Kernel Version: The kernel version is the same as the kernel version mentioned earlier.

Other Important Details

Here are some other important details to look for:

• Package Manager: The package manager is the tool used to install and manage packages, such as apt-get or yum. You can check the package manager by running dpkg -l.
• Package List: The package list is a list of installed packages, such as apt-cache show package-name. You can check the package list by running dpkg -l.
• System Logs: The system logs are the logs of the system, such as /var/log/syslog. You can check the system logs by running journalctl.

Tools to Check Linux Version

Here are some tools to check Linux version:

• uname -a: This command displays information about the system, including the kernel version, distribution, and other details.
• uname -r: This command displays the kernel version.
• uname -a (with --version option): This command displays the kernel version and distribution.
• lsb_release -a: This command displays information about the operating system, including the distribution and kernel version.
• dpkg -l: This command displays a list of installed packages.
• dpkg -s: This command displays information about a package.
• journalctl: This command displays the system logs.

Conclusion

Finding out what version of Linux you’re running is an essential step in understanding your system and its capabilities. By checking your system information, kernel version, distribution, and other details, you can gain a better understanding of your system and make informed decisions about your Linux installation. Additionally, using tools to check Linux version can help you troubleshoot issues and optimize your system for better performance.

Table: Linux Version Information

Field	Description
Kernel Version	The core of the Linux operating system, determining the underlying architecture and features.
Kernel Release	The version of the kernel, such as 4.15 or 5.4.
Kernel Build Date	The date when the kernel was built, such as 2019-01-01.
Distribution	The name of the operating system, such as Ubuntu or Fedora.
Distribution Version	The version of the operating system, such as 20.04.
Package Manager	The tool used to install and manage packages, such as apt-get or yum.
Package List	A list of installed packages, such as apt-cache show package-name.
System Logs	The logs of the system, such as /var/log/syslog.

Tips and Tricks

• Use the uname -a command: This command displays information about the system, including the kernel version, distribution, and other details.
• Use the uname -r command: This command displays the kernel version.
• Use the lsb_release -a command: This command displays information about the operating system, including the distribution and kernel version.
• Use the dpkg -l command: This command displays a list of installed packages.
• Use the dpkg -s command: This command displays information about a package.
• Use the journalctl command: This command displays the system logs.