It would have to retrieve them all and then parse the massive output for the names you want. This isn't the case with databases. The number of files inside a folder has nothing to do with the OS. It's a feature of the file system although the system you use may in turn has lower limitations. Some file systems limit the number of files in a folder but some others just limit the total number of files in a volume, and some don't have any limits at all.
See file systems' limits. Note that basically a directory is just a file whose content is a list of other files. If you use exFAT , the maximum number is 2 files per folder. In NTFS the limit is 2 32 -1 files per volume. Windows also natively support a few other file systems like ReFS, or you can install drivers for other non-native file systems.
They may in turn have different limits. But in any case having a huge number of files in a folder is a very bad idea. The listing and operating speed depends on how the file system stores its metadata, for example in FAT it's a linear list so it's very slow. In general I avoid having more than files in a folder.
The better solution in your case should be some kind of database. However if you really have to store the files directly in a drive then you need to distribute the files evenly to multiple smaller folders. The common way is to hash the file name or content and split into folders having part of that name. This way no folder should have too many or too few files. Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. How many folders can I put in one Windows folder? Ask Question. Asked 9 months ago. Active 9 months ago. Viewed 10k times. I have a 10M folders. Active Oldest Votes. It is one more than the number of colons. Improve this answer. Brian Brian 1, 1 1 gold badge 9 9 silver badges 13 13 bronze badges.
So the subdirectories are not included in this count? I thought that after every forward slash we go into a subdirectory of the directory before the forward slash? I guess it depends on what exactly you want. You can count each subdirectory of each path, but it didn't seem like that's what the original question asked for. Sign up or log in Sign up using Google. In this example, the "10" indicates the amount of directories and files in the current directory.
The example command below is assuming all the files in the directory have extensions. If a file does not have an extension, it is not counted. The listing and operating speed depends on how the file system stores its metadata, for example in FAT it's a linear list so it's very slow. In general I avoid having more than files in a folder. The better solution in your case should be some kind of database.
However if you really have to store the files directly in a drive then you need to distribute the files evenly to multiple smaller folders. The common way is to hash the file name or content and split into folders having part of that name. This way no folder should have too many or too few files. Python Javascript Linux Cheat sheet Contact. How many folders can I put in one Windows folder? As far the theoretical capacities of NTFS are concerned, there is no problem.
I really suggest to rethink again your folder architecture. Note that basically a directory is just a file whose content is a list of other files If you use exFAT, the maximum number is 2 files per folder.
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