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lscpu: command not found

by Deepika

lscpu command gives us information about our processor’s architecture, which operation mode the processor is currently using, the byte order, how many processors we’re running, how many cores, and so on.

In an active Terminal session, type the following command:

$ lscpu

The following screenshot is the result of running lscpu on my 32-bit virtual machine:

lscpu Command Examples in Linux

If you encounter the below error while running the command lscpu:

lscpu: command not found

you may try installing the below package as per your choice of distribution:

Distribution Command
Debian apt-get install util-linux
Ubuntu apt-get install util-linux
Alpine apk add util-linux
Arch Linux pacman -S util-linux
Kali Linux apt-get install util-linux
CentOS yum install util-linux
Fedora dnf install util-linux
OS X brew install util-linux
Raspbian apt-get install util-linux

lscpu Command Examples

1. To get the CPU architecture:

# lscpu 

2. To get the lscpu help:

# lscpu -h
# lscpu --help 

3. To find the number of sockets run the following:

# lscpu | grep -i 'socket'

4. To print the output in parsable format:

# lscpu -p
# lscpu --parse 

You can also find similar information in the file /proc/cpuinfo. For example, to find the number of cores run the following command:

# grep "physical id" /proc/cpuinfo | sort | uniq | wc -l

Filed Under: Linux

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