lscpu

Linux · System · reference only

What it does

Shows CPU information: architecture, model, number of cores and threads, frequencies and caches.

Syntax

lscpu [opciones]

Options and parameters

• -e

  Shows a table with one row per logical CPU.

• -p

  Shows the information in a format easy for programs to process.

• -J

  Shows the information as JSON.

• -C

  Shows CPU cache information.

• -a

  Includes both online and offline CPUs in the table.

• -b

  Shows only the CPUs that are online.

Usage examples

• lscpu

  Shows the full CPU summary.

• lscpu -e

  Lists each logical CPU with its core and state.

• lscpu -J

  Gets the same data as JSON to use in a script.

• lscpu | grep -i model

  Filters the lines that mention the processor model.

Notes and common mistakes

• It is part of util-linux and reads its information from /proc/cpuinfo and /sys.

Related commands

• apt-cache
• cal
• date
• df
• dpkg-deb
• dpkg-query