: sudo /Applications/Install\ macOS\ [Version].app/Contents/Resources/createinstallmedia --volume /Volumes/macOSISO --nointeraction
: hdiutil create -o /tmp/macOS -size 16G -layout SPUD -fs HFS+J
A file is a standard disk image used primarily for installing Apple’s operating system on virtual machines (like VirtualBox or VMware ) or for creating bootable installation media on non-Apple hardware (Hackintosh).