Howto: Linux detect or find out a dual-core cpu

There are a few different ways you can check whether your Linux system has a dual-core CPU:

1. Check the output of the lscpu command:

This command displays information about the CPU and its architecture, including the number of cores. If you see a value of "2" for the "CPU(s)" field, then you have a dual-core CPU.

2. Check the output of the cat /proc/cpuinfo command:

This command displays detailed information about the CPU and its capabilities. Look for the "cpu cores" field, which should have a value of "2" if you have a dual-core CPU.

3. Check the output of the nproc command:

This command displays the number of processing units (i.e., cores) available on the system. If the output is "2", then you have a dual-core CPU.

4. Check the output of the top or htop command:

These commands display real-time information about system resource usage, including CPU usage. If you see two CPU cores being used, then you have a dual-core CPU.

5. Check the system BIOS or UEFI:

If you are unsure about the CPU in your system, you can check the BIOS or UEFI settings for information about the CPU. This information is typically found under the "Hardware" or "System" menu.