I'm learning how to set up a server and I came across this -j8 command. I found nowhere an explanation of why this command. Could someone help me understand what he does? Thanks in advance
-j8
is a parameter passed to the compiler to use 8 processor cores during compilation to speed up the process.
For questions about command line utilities parameters in general:
using man <comando>
shows the utility manual, which is very sympathetic to the most common utilities and generally solves any superficial queries.