> Unix shell has survived more or less intact for 50 years. That implies no significantly better CLI language has been invented False. Network effect is an equ

> Unix shell has survived more or less intact for 50 years. That implies no significantly better CLI language has been invented False. Network effect is an equally good explanation. In fact, one of the arguments that repeatedly crops up on HN in favour of bash is "it's installed already". The first thing I install on a Linux box is powershell. Your mention of the DOS shell is a straw man - it hasn't been state of the art on Windows for nearly twenty years. So you picked a bad example but your point has merit? No. I don't think it does. Kernel devs see problems with fork. Fork is thirty years old, maybe forty? Sometimes things need to change.