5 Effective Ways to Check CPU Info in Linux

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Last updated: June 28, 2023

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To check CPU info in Linux, you can try these methods:

  1. Obtain detailed CPU information using the lscpu command.
  2. Extract specific CPU details by examining the /proc/cpuinfo file.
  3. Explore comprehensive CPU information with the hwinfo command-line tool.
  4. Monitor real-time CPU usage and performance using the System Monitor graphical tool.
  5. View detailed system information, including CPU details, using the inxi command-line tool.

Discover efficient ways to check CPU information in Linux for optimal system performance and hardware understanding. Utilize command-line tools like lscpu, cat /proc/cpuinfo, and hwinfo to gather comprehensive details. Monitor CPU temperature, leverage graphical tools such as System Monitor and GNOME System Profiler, extract specific information using grep and awk, and monitor CPU usage in real-time with top.

Continue reading the guide below to explore different methods to check CPU info in Linux and tips and tricks to check CPU info.

When optimizing performance and troubleshooting issues in Linux systems, understanding the hardware specifications is crucial. Checking CPU information plays a vital role in this process, allowing you to gather valuable insights about your system’s processing power. In this comprehensive guide, I will explore different ways to check CPU info in Linux, ranging from command-line tools to graphical user interfaces (GUI) and third-party applications. I will also explore tips and tricks to check CPU info in Linux. By leveraging these methods, you can better understand your CPU’s capabilities and make informed decisions for system optimization.

How to Check CPU Info in Linux

To check CPU info in Linux, you can utilize various methods. The lscpu command provides quick and detailed CPU information while examining the /proc/cpuinfo file gives access to specific CPU details. The hwinfo tool offers comprehensive CPU specifications, and the System Monitor GUI tool allows real-time monitoring of CPU usage. Additionally, the inxi system information tool provides detailed hardware and software information.

1. lscpu Command

lscpu is a command-line tool that provides a quick and straightforward way to obtain detailed CPU information in Linux. It is particularly useful for identifying CPU architecture, vendor, model name, CPU cores, and cache details. Follow these steps:

  1. Open a terminal.
opening terminal 21
  1. Once installed, simply run the following command in the terminal:
  1. The output will display essential CPU information, including architecture, vendor, model name, CPU cores, and cache details. Analyze this information to identify the CPU model, understand the number of cores available, and determine cache sizes.
viewing essential information about CPU

2. Utilizing cat /proc/cpuinfo

Examining the /proc/cpuinfo file through the cat command provides a wealth of information about your CPU. This method is ideal for extracting specific CPU details like flags, frequency, and model name using additional command-line tools like grep and awk. Here are steps to do it:

  1. Open a terminal and enter the following command:
<strong>cat /proc/cpuinfo</strong>
  1. The output will provide a wealth of information about your CPU, such as CPU flags, frequency, model name, and more. 
viewing CPU information using cat command

3. Exploring hwinfo

hwinfo is a versatile command-line tool that offers an extensive range of hardware information, including detailed CPU specifications. It is well-suited for obtaining comprehensive CPU-related details such as vendor, model, architecture, cache sizes, and virtualization support. Follow these steps

  1. Install hwinfo by running the following command:
<strong>sudo apt install hwinfo</strong>
  1. The command will install hwinfo after execution.
installing hwinfo to view system details
  1. Launch hwinfo in the terminal by typing:
  1. Within the hwinfo output, you’ll find detailed CPU information, including vendor, model, architecture, cache sizes, virtualization support, and more.
viewing descriptive view of system information using hwinfo

4. Using System Monitor

The System Monitor graphical user interface (GUI) tool provides real-time monitoring of system resources, including CPU usage. It is perfect for visually observing CPU performance, frequency, temperature, and other relevant details. Here is a step-by-step guide to it:

  1. Open the application menu. 
opening application menu
  1.  Search for System Monitor and launch the application.
launching system monitor 1
  1. In the System Monitor interface, navigate to the Resources tab. 
  2. In the Resources tab, you can observe real-time CPU usage, frequency, temperature, and other relevant details. Graphical representations make it easy to visualize CPU performance.
viewing CPU info using System monitor

5. inxi System Information Tool

The inxi system information tool is a powerful command-line tool that allows you to view detailed information about your system, including hardware and software details. This tool is particularly useful for system administrators, troubleshooters, and users who need to gather detailed information about their system for diagnostic or optimization purposes. Here is a step-by step guide:

  1. Launch your command window.
  2. Run the following command to install inxi:
<strong>sudo apt install inxi</strong>
  1. Press Enter to continue the installation.
installing tool to view cpu info
  1. After the installation is complete, you can verify that inxi is installed correctly. Run the following command:
<strong>inxi --version</strong>
  1. If the installation was successful, you should see the version number of inxi displayed in the output.
verifying the version of inxi
  1. To display system information using inxi, simply run the following command:
  1. This will provide detailed information about your system, including hardware, software, and other relevant details.
viewing cpu info using inxi

5 Tips and Tricks to Check CPU Info in Linux

Discovering efficient ways to check CPU information in Linux is essential for optimizing system performance and understanding hardware capabilities. By employing these tips and tricks, you can efficiently check CPU info in Linux, optimize system resources, and gain insights into your hardware’s capabilities. Here are five helpful tips and tricks that will assist you in obtaining valuable CPU insights.

  • 💻 Utilize Command-Line Tools: Command-line tools like lscpu, cat /proc/cpuinfo, and hwinfo offer quick and comprehensive CPU information. Use the lscpu command to determine architecture, vendor, model name, CPU cores, cache details, and virtualization support. cat /proc/cpuinfo provides extensive CPU information, and hwinfo gives a comprehensive overview of the hardware, including detailed CPU specifications.
  • 🌡️ Monitor CPU Temperature: Keep an eye on CPU temperature using tools like lm-sensors and commands like sensors. Monitoring CPU temperature aids in preventing overheating, ensuring optimal performance, and detecting potential thermal issues. Use sensors command to display temperature readings from various sensors, including the CPU.
  • 🖥️ Leverage Graphical Tools: Graphical tools such as System Monitor and GNOME System Profiler offer user-friendly interfaces for real-time CPU monitoring, temperature visualization, and exploring detailed CPU specifications. System Monitor provides visual graphs and statistics for CPU usage, frequency, temperature, and more. GNOME System Profiler offers a comprehensive hardware overview, including CPU details.
  • 🕵️ Extract Specific CPU Information: Combine command-line tools like cat /proc/cpuinfo with utilities like grep and awk to extract specific CPU details using regular expressions. This technique allows you to retrieve targeted information such as model names, cache sizes, or CPU flags. For example, use grep to filter CPU information based on a specific attribute or use awk to extract specific fields from the output.
  • 📈 Monitor CPU Usage in Real-Time: Utilize tools like top to monitor CPU usage in real-time directly from the command line. The top command provides a live view of CPU statistics, processes, and resource utilization, aiding in performance analysis and troubleshooting. Use the interactive features of top to sort processes by CPU usage, monitor system load, and identify resource-intensive tasks.

In Conclusion

Throughout this article, I have discussed different approaches, including command-line tools like lscpu, cat /proc/cpuinfo, and hwinfo, as well as graphical user interface tools like System Monitor to check CPU information in Linux.  I have also highlighted the availability of third-party tools like the inxi System Information Tool. By employing these methods and exploring the tips and tricks shared, you can gain valuable insights into your CPU and optimize your Linux system for enhanced performance.

To further enhance your Linux knowledge, I recommend exploring related articles that discuss topics like Linux system optimization, CPU overclocking techniques, and advanced performance monitoring tools. Continuously expanding your understanding of CPU-related concepts will empower you to optimize your Linux system’s performance and address any challenges that may arise. 

Frequently Asked Questions

How can I determine the number of CPU cores in Linux?

To determine the number of CPU cores in Linux, you can utilize the lscpu command-line tool. By running the lscpu command, you will receive an output that includes information about CPU cores. Look for the CPU(s) or Core(s) per socket field to find the number of CPU cores available. You can also check the CPU family, Model, or Vendor ID fields to gain further insights into your CPU architecture and specifications. This information is crucial for understanding your system’s processing capabilities, optimizing resource allocation, and ensuring compatibility with multi-threaded applications.

Is it possible to check CPU temperature in Linux using command-line tools?

Yes, checking CPU temperature in Linux using command-line tools is possible. One such tool is lm-sensors, which provide access to temperature sensors on your system. After installing lm-sensors, run the command sensors in the terminal. This will display temperature readings from various sensors, including those for your CPU. The output typically includes the temperature in Celsius for each available core. Monitoring CPU temperature is essential for ensuring optimal performance, preventing overheating, and identifying potential thermal issues impacting system stability and longevity.

How can I extract specific CPU information using regular expressions in Linux?

To extract specific CPU information using regular expressions in Linux, you can combine command-line tools like cat /proc/cpuinfo with utilities such as grep and awk. For example, to extract the model name of your CPU, you can use the following command:
cat /proc/cpuinfo | grep "model name" | awk -F ':' '{print $2}'. This command searches for lines containing model name in the CPU information file and then uses awk to extract the text after the colon. Regular expressions provide flexibility in defining patterns for extracting specific information. You can adjust the regular expression and pipeline to extract CPU details, such as cache sizes, flags, or frequency.

Is there a way to monitor CPU usage in real-time from the command line?

Yes, you can monitor CPU usage in real time from the command line using the top command. When you run top in the terminal, it displays a live, interactive view of system processes, including CPU usage statistics. The CPU section provides insights into the overall CPU usage, individual process CPU usage, and the percentage of CPU time consumed by each process. Additionally, top allows you to sort processes based on their CPU usage, helping you identify resource-intensive tasks. Monitoring CPU usage in real-time is valuable for performance analysis, system troubleshooting, and identifying processes causing high CPU utilization.



Ojash is a skilled Linux expert and tech writer with over a decade of experience. He has extensive knowledge of Linux's file system, command-line interface, and software installations. Ojash is also an expert in shell scripting and automation, with experience in Bash, Python, and Perl. He has published numerous articles on Linux in various online publications, making him a valuable resource for both seasoned Linux users and beginners. Ojash is also an active member of the Linux community and participates in Linux forums.



Akshat is a software engineer, product designer and the co-founder of Scrutify. He's an experienced Linux professional and the senior editor of this blog. He is also an open-source contributor to many projects on Github and has written several technical guides on Linux. Apart from that, he’s also actively sharing his ideas and tutorials on Medium and Attirer. As the editor of this blog, Akshat brings his wealth of knowledge and experience to provide readers with valuable insights and advice on a wide range of Linux-related topics.

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