aka "lacks namespaces"... but it isn't so. The namespaces are paths and they're "linked" by $PATH. /usr/local/bin is a namespace. Is it guaranteed to be a fu

aka "lacks namespaces"... but it isn't so. The namespaces are paths and they're "linked" by $PATH. /usr/local/bin is a namespace. Is it guaranteed to be a fully qualified namesake? No. But your sysadmin (now Docker) is in charge of that. You can plan a system that forces everyone to use fully qualified nameplates, but you can't force people to use the system. That's why unix/posix/Linux remain the lowest common denominators.. by making fewer assumptions they retain a different flexibility that makes them useful for gluing together the ornery systems designed by all you planners.