Possible to have multiple input files

[ahstro]

Is it possible to specify multiple input files to all be added to the same output file?

[ProxyAi]

Are you looking for something like this?
cat style.min.css materialize.min.css | csso -o production.min.css

but side note i would have through this would have worked reading the docs but turns out not to
csso -i style.min.css -i materialize.min.css -o production.min.css

[ahstro]

@xorenio That might be what I was looking for. Thank you! I also tried using multiple -i-flags with no results, so maybe some error should be thrown if it is used (or maybe support should be added)?

[kkmuffme]

+1, that would be really great if that were possible

[StephenWall]

Allowing multiple -i <filename> arguments would be friendlier for build systems than relying on the existence of a cat command on the host OS.