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When it comes to understanding the specifics of the central processing unit (CPU) on a Linux system, few tools are as straightforward and comprehensive as lscpu. This command-line utility is a part of the util-linux package and is widely available on most Linux distributions. It provides detailed information about the CPU architecture, including number of cores, threads, sockets, and more. This article will delve into how to use lscpu effectively and interpret some of the key outputs it offers. The lscpu command stands for “list CPU”. It gathers CPU architecture information from sysfs and /proc/cpuinfo, presenting it in a user-friendly format.