True, but a bit reductionist. A Unix file system also gives certain guarantees. For example, you can atomically rename a complete directory tree while client pr

True, but a bit reductionist. A Unix file system also gives certain guarantees. For example, you can atomically rename a complete directory tree while client program keep accessing the "old" ones, you have a large choice of excellent SCMs for tracking files, can have networked and/or distributed file systems, uniform permissions or ACLs ... all of which come in handy if you're running a web server.