> What if I want to list all information about files with some mode? `ls` will still send 10^6 lines, carefully formatted, and almost all of them will be discar

> What if I want to list all information about files with some mode? `ls` will still send 10^6 lines, carefully formatted, and almost all of them will be discarded with a simplest filter it could perform before reading all additional information from disc. Indeed. That's probably one of the reasons PowerShell was designed to execute the commands in-process: The objects being piped are just the object references. There's still the problem of using native indexes. That hasn't been solved elegantly yet. Reading all file names when wildcards would have eliminated 99% of them using file system metadata seems a waste. Which is probably why "ls" in PowerShell still allows a -Include filter and an -Exclude filter that take wildcards.