Almost all software can be installed silently. If it's an MSI file, then it has be be able to be installed silently, per the spec (though some vendors do dumb things that make this not actually work).
If you're working with an MSI file, just do
msiexec /i <path to the file> /qb! if you want no user interaction, but you want a progress bar to show. If you want it completely silent, replace
If you're working with software that isn't installed from an MSI, then you need to read the manual for it. It will tell you if a silent installation is possible.