Add a directory (must be written with trailing slash) to the include file search path before assembling

The Netwide Assembler, a portable 80x86 assembler.
More information: <https://nasm.us>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

nasm -i {{path/to/include_dir/}} {{source.asm}}

click the source code to copy install nasm on any operating system with command-not-found.com