Little Step

If you are a C/C++ programmer, and are accustomed with the common build process, you will know the make and install commands.

make && make install

If it is a big project, and the whole build process costs a lot. So you want to build parallelized, adding more jobs, like this:

make -j8 && make install

This will creates 8 jobs at the same time. And the best number of job is the number of CPU processors. How to get the number of processor on Linux platform?

Here is one simple way, the nproc command. Its only purpose is to print the number of processors. The build command now will be like:

make $(nproc) && make install

Of course, you can also use this way:

grep -c processor /proc/cpuinfo

And you can also you lscpu command with grep or awk, like this:

lscpu |  awk '{ if ($1 == "CPU(s):") print $2 }'