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List CPU Details with lscpu

lscpu prints the CPU model, socket/core/thread layout, base frequency, and supported instruction flags in a clean summary.

LinuxhardwarecpulscpuLow risk
Run `lscpu` to show CPU model, core count, and feature flags.

01Command

Command
$ lscpu

02What it does

'CPU(s)' counts logical threads, while 'Core(s) per socket' × 'Socket(s)' gives physical cores — a 16-CPU box may be only 8 physical cores with hyperthreading. Check the Flags line for vt-x/amd-v (nested virtualization), avx, or aes support before running workloads. Use `lscpu -e` for a per-core table and `lscpu -p` for machine-parsable output.

03Risk

RiskLow risk
Requirementsutil-linux (default on all major distros)

04Undo

✓No undo needed — this command does not change persistent state.

05Sources

  • lscpu(1) - Linux manual page
    Ubuntu Manpages · technical · 2026-09-17
    Evidence: lscpu displays information about the CPU architecture, including model name, CPU(s), core(s) per socket, and flags, gathered from sysfs and /proc/cpuinfo.

Last verified: 2026-09-17 · Category: System & Settings