How to obtain the number of CPUs/cores in Linux from the command line?

You can find the number of CPUs/cores in Linux using any of these commands:

1. nproc

   nproc

   Prints the number of available processing units (cores).

2. lscpu

   lscpu

   Shows detailed information about the CPU architecture, including the number of CPUs (CPU(s)), threads per core, cores per socket, etc.

3. /proc/cpuinfo (Manual Inspection)

   cat /proc/cpuinfo | grep -c "^processor"

   Counts the lines that begin with "processor", effectively giving the total number of logical processors.

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