This is oddly something that some of the earliest Node interfaces do quite well. (I say “oddly” because Node was mostly promoted early on for network/server use

This is oddly something that some of the earliest Node interfaces do quite well. (I say “oddly” because Node was mostly promoted early on for network/server use cases.) It’s generally not idiomatic in these days of async/await and Web Streams, but streaming IO was a core async primitive from very early on. 0.1.90 for child processes, unspecified for the main process object so possibly from the first release. Granted the interfaces really show their age in terms of incidental complexity, they’re far from being as simple as their shell equivalents. But as far as behaving well, streaming is solid and there’s a wealth of compatibility affordances depending on how portable your script needs to be.