How can I check the number of CPU cores on CentOS?

2 years ago
Noah Thompson
1 minute

You can use the following command in CentOS to check the number of CPU cores:

  1. Use the lscpu command:
lscpu

This command will provide detailed CPU information, including the number of cores.

  1. Read the /proc/cpuinfo file using the cat command.
cat /proc/cpuinfo | grep processor | wc -l

This command retrieves information from the /proc/cpuinfo file, searches for the keyword “processor” using a pipe and the grep command, and then calculates the number of cores using the wc command.

  1. nproc command:
nproc

This command will directly display the number of CPU cores.

All three methods can accurately display the number of CPU cores.

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