Additional notes
Your question is largely answered at this unix.stackexchange link. -to-install-apt-get-or-yum-on-mac-os-x So, apt-get is not really recommended as a package manager for MacOS, it's for Debian(so, e.g. Ubuntu is debian based hence Ubuntu uses apt-get). Homebrew is one for Mac OS.. and another one called macports. ..Apparently you can get apt-get on macOS but getting it to work is, they say here, a bit advanced.