Is there a simple UNIX utility that splits stdin into multiple streams?

Question

Command line

For example, to calculate MD5 and SHA384 at once and compress the data, I would like a utility (let's call it multiplex), which would be called something like this

dd if=/dev/sda | multiplex md5sum sha384sum "gzip -9v > sda.gz"

That is, it would take standard input data, run all programs from parameters, and pass them all the same data on standard input.

Answer 1

man tee