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I am desparately trying to find all files within a folder and its subdirectories containing exactly a single dot. Reading the documentation of findstr I came up with this kind-of-regex, but it still matches all file names containing dots. In my understanding the regex I constructed should read: "Any characters except dots, then require a single dot, then again any characters except dots."
where /r directory *.* | findstr /irc:"[^\.]*\.[^\.]*"
I know I could install grep, but I want a solution that works out of the box.