Sure it's been around for a while, GNU version on linux at least. Personally found pipe viewer (pv) quite handy too https://www.ivarch.com/programs/pv.shtml htt

Sure it's been around for a while, GNU version on linux at least. Personally found pipe viewer (pv) quite handy too https://www.ivarch.com/programs/pv.shtml https://www.ivarch.com/programs/pv.shtml - available in most distros