To check how many CPUs (central processing units) are present in a Linux system, you can use the nproc command. The nproc command is a utility that displays the number of CPUs on the system.
To use the nproc command, open a terminal and enter the following command:
nproc
This will display the number of CPUs on the system. For example, the output might look something like this:
4
This indicates that the system has 4 CPUs.
Alternatively, you can use the lscpu command to view information about the CPUs on the system. The lscpu command is a utility that displays detailed information about the system's CPU architecture and configuration.
To use the lscpu command, open a terminal and enter the following command:
lscpu
This will display a summary of the CPU architecture and configuration. To see the number of CPUs, look for the "CPU(s)" line in the output. For example:
CPU(s): 4
This indicates that the system has 4 CPUs.
Keep in mind that the nproc and lscpu commands may not work on all systems, as they depend on the availability of certain system utilities and kernel features. In some cases, you may need to use a different method to check the number of CPUs on a Linux system.