A file system is the specification of how files in a computer should be stored, named and organized. This tag should be used for generic file system questions. For specific file system questions (FAT, NTFS, ext4, ...) use the appropriate tag instead.

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What characters are not allowed in SkyDrive file names?

I'm adding my music to SkyDrive, and a file failed to sync with this message: Error: This file name contains characters that aren't allowed. Resolution: Please change the file name so it doesn't ...
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Windows 8.0 unable to display FAT32 external hard disk in “Computer”

My Windows 8.0 is unable to display my external hard disk which has important files and works well on Mac. I know Windows uses the NTFS file system which is "more secure". I need to format it as ...
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109 views

File size on disk gets minimum equal to memory page size instead of disk sector size?

I often write small programs of sizes < 512 bytes, which is my disk's sector size. However, the du command always shows these files' disk usage at 4K. My memory page size is 4K. So I was ...
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Which filesystem to choose in sparse files?

I have the problem, that I want to save backups to a NAS. Unfortunately the NAS is only avalable as CIFS network share (plus root SSH access). I do not want to modify anything in the configuration ...
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How many actual files were you able to store in a CentOS folder?

I found many questions about the total files limitations of the CentOS file-system, but I was curios in actual real-world situation, how many files people were able to store in one single CentOS ...
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Are there File Managers where I can show connections between files in the same directory?

Without creating new directories, is there a file manager that can illustrate relationships between files/folders in the same directory? For example, I would like to turn something like this: ...
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how do I on OSX copy a folder from an external drive to my hard drive and only add the new files?

say I have on the external drive: A/file1.txt B/file2.txt B/file3.txt and on my hard drive I have: A/file1.txt B/file2.txt I would like to drag and drop the whole folder over to the hard drive ...
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275 views

Windows Directory Structure

I know how a *nix directory structure is set up and how directories are pretty much just lists of files. I can open them with a text editor and read them, they are an actual "file". I am a little ...
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Why formatted flash memory has used space

I format my flash memory and select its file system format as FAT32 : And then take a look at the flash memory drive properties : As you see above, there is a 16KB used space. I change ...
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Why does process read Offset/Length from C: drive?

Below is a clip of SysInternals Filemon in action. What I don't understand is why various processes are reading the C: drive at an offset, rather than reading specific files. I have noticed ...
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How to convert exFAT to FAT32?

How to convert an exFAT-formatted USB flash drive to FAT32?
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5answers
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Choice of filesystem for GNU/Linux on an SD card

I have am embedded ARM-based system running on an SD card. It's currently Debian GNU/Linux using ext3 as filesystem. As I'm about to reinstall the system, I started wondering about changing to a more ...
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Hibernating and booting into another OS: will my filesystems be corrupted?

IMPORTANT If you came here looking for an answer to this question, please read all the answers below. There are some testimonials from people who have lost data doing this. If you plan to do this ...
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Ntfs on freebsd not working, other solution

I am using FreeBSD 10. I want to share an external hdd formatted in ntfs with both FeeBSD and Windows. Fusefs-ntfs is refusing to cooperate, so I can't manage to mount ntfs disk to FreeBSD, though I ...
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1answer
498 views

How to enlarge RAID5 array with MegaRAID WebBIOS?

I'm a little confused with RAID5. I created a RAID5 array group from WebBIOS with 6 drives. Then created an XFS partition on this RAID5 drive. How can I enlarge the RAID5 without losing data? In ...
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Files deleted from network share. Where would they go?

I've had a question posed to me by a user, they've deleted some files from a network share, and they're looking at somehow recovering them. Of course, if they go for file recovery, it will have to ...
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322 views

Unix: softlinks, hardlinks

I am somewhat confused what the differences between a softlink, and a hardlink are (on unix). It seems like a softlink is the same as a shortcut in windows or an alias on Mac OS X. (Can someone ...
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partitioning and subvol strategy with btrfs

I'm new to btrfs and I'd like some advice on partitioning and subvolume strategy. The system is a light-duty web server, and assume it only has a single disk. With ext filesystems, I've always ...
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Failed to mount Lock Directory and User Runtime Directory

I have a Raspberry Pi with Raspbian (debian). I tried this and my system upgraded with no error. When I reboot, a surprise, my system does not turn on. I tried to search on the internet but nothing. ...
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1answer
74 views

Overwriting a files in place on NTFS

Let's say I have a Python program that opens a file and overwrites it with zeros, and I run it on a Windows 7 computer formatted in NTFS. If this is done on an HDD (not an SSD) will the file be ...
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Rsync doesn't allow me copy files into mounted filesystems

I configured rsyncd.conf for public access in my rpi: log file = /var/log/rsyncd.log timeout = 600 max connections = 20 uid = nobody gid = nogroup read only = yes list = yes [public] path = ...
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2answers
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Are there any issues of have huge files in HD in a 32 bit system?

I know that in 32 bit systems the largest memory we can have is 4GB (2^32). But I am not clear what is the implication of this in terms of files. I think that we can have files of arbitrary size in ...
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1answer
64 views

Is there a way to run an HTML file with default browser and a parameter?

I have an HMTL file that I would like to be opened with the user's default browser, followed by a parameter. For example, if your default browser was Google Chrome, it would open as: ...
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Formatting 1TB External Drive - Mac/PC

We have 1 mac user in a PC environment... and I have bought a 1TB WD external hard drive and need to format it so that both PC and Mac can read/write to it. Doing this from the mac should be easy, but ...
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62 views

Compact-Disk filesystem to handle a million files?

Good day, I would like to know a compact-disk file system that is able to support millions of files. the file systems that i am aware of have a large cluster size (2048) and are not able to store so ...
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Can I stop a format disc operation midway?

I'm formating a new HDD (Toshiba 1TB from NTFS to FAT32) to fit it on my old PS3. But it's taking a lifetime to get the thing done... Meanwhile I found on the internet some tutorials using other ways ...
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Attributes of a file - followup for Windows and Linux

I found a question that lists the (quote): attributes are of a regular file (as opposed to a symbolic link, etc.) on Mac OS X with Mac OS Extended (Journaled) (HFS+) Does such a list exist for ...
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569 views

Tar - Remove Common Prefix When Creating Archive

I am attempting to tar up the contents of a root file system, located at $rootfs. The problem is, when I try to tar -c $rootfs > $dest, the directories between my current directory and the actual ...
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What is the extension of a folder in Windows?

Windows recognizes files using extensions. Does same applies to folders? Is there a special extension that mark a file as a folder?
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2answers
640 views

How does a file have no extension?

Take for instance: cat /etc/passwd Why doesn't this file have an extension such as *.txt*, *.dat*, etc? Or does an extension exist, but it's just being hidden? Does this apply strictly to ...
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4answers
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How do I delete a file that is in use by another process? [duplicate]

Possible Duplicate: How do I delete a 'locked' file? More specifically, I'm trying to rename or overwrite a file, and get the message Access Denied. Make sure the disk is not ...
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Is it possible to have dynamic files with the contents being at some internet resource? [closed]

Maybe this is a stupid question, because, if this was trivial, Dropbox and other similar tools would have made use of the functionality. And if it was trivial it would create horrible security holes. ...
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saving notes against a file on linux

I want to save notes against a file on linux. I want to save meta data about a file, because the file names are restricted in max length. so how to save notes or comments about a file on linux so ...
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How to uninstall an old Windows installation from 2nd drive that appears in boot menu?

I have recently installed Windows 7 on my new Vertex 3 240 GB SSD. However, my old Windows installation is haunting me as I am unable to delete the files, and it appears in boot menu. Now, I am not a ...
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Is file system part of operating system?

I was wondering if a file system on a storage device is part of OS? I don't think it is. Instead it is part of the storage device, and exists outside of any OS although was created by an OS. Is my ...
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How can I generate a list of files from a list of sectors?

I've had a hard disk failure and managed to rescue some data from the disk (1TB) with GNU's ddrescue. The last 800GB of the disk were perfect, no single error, but in the first 200GB there were almost ...
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Strange replication between volumes

In one PC i found strange issue: there are two folders C:\folder1\ and D:\folder2 on it, when i create file in one of them (either), the same file instantly appears in another folder. What can cause ...
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3answers
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Is there such a thing as a file hosted container which deduplicates data held within?

Background I have backups of a website which stores all of it's data into a single file. This file is several gigs large and I have many different backups of this file. Most of the data within is ...
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3answers
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Should file names contain multiple periods?

I often name files using a convention such that I incorporate a version number at the end, similar to Some Deliverable - v0.1.docx. Sometimes when colleagues make changes and send back revised ...
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Linux file system for a big file server

I would like to know, from more experienced people, what would be the best choice of file system to use for a file server having more than 20TB of hard disks. Personally I always used EXT3 (back in ...
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How to shrink an ext4 partition from Windows?

My system has three primary partitions: two NTFS (one "system-reserved") for Windows 7 and one ext4 for Linux. How can I shrink the ext4 partition from Windows? I've tried the built-in Disk ...
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2answers
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How to make a file non-deletable on an USB drive?

Somebody used my USB drive and upon returning it to me, I found a autorun.inf that is undeleteable. I tried changing it's file attribute which is only H (not even set as a system file) but it keeps on ...
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USB Drive Format for Reading/Writing 4GB+ Files on OSX and Windows

I am trying to settle on a drive file format which is compatible with OSX and Windows for reading/writing 4GB+ files. Linux support would be a bonus. Using FAT is a no go since it does not support ...
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241 views

create file in directory without x permission set on directory : How?

From this page, http://content.hccfl.edu/pollock/aunix1/filepermissions.htm, I understand that I need the +w bit set in a directory to create a new file and +x bit to cd into it/access its inode. So ...
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1answer
40 views

Prevent user to read files from vfat filesystems - but allow to write

Its possible do that? I want to mount a flash drive(vfat) in linux and the user be able to write to it but not to read. I've tried: mount /dev/sdb1 /media/mpoint -o fmask=0444 but no results. ...
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What is file ']' ? How is it created?

I wonder how this file got in my directory? When I run ls -lrt it shows -rw-r--r-- 1 and size 117562 . Can I get any directions for this?
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ls -lrt showing file which is not present

When I do ls -lart in my current working directory it shows lrwxrwxrwx 1 root 10004 36 Dec 16 17:59 index.html ->/home/moviebeam/assets/ui/index.html But I cannot see contents of the ...
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Hard Drive Connected to Router Randomly Loses Files Or Turns Them Into Empty Folders

Several months ago, I decided to replace my network storage device with a standard external hard drive that hooked up to the USB connection on my Linksys EA3500 SMART WiFi Wireless Router. The ...
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71 views

Using wc on a file while it is used by other program

I am generating a text file that in the end will contain roughly a billion entries. The file is generated by a program that writes to it every couple of seconds. For this it always opens the file and ...
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Linux directory becoming a clear plain text file

Did anyone encounter this before? I have a directory called opt which is working previously. Last few days ago, i tried to expand LVM size by using off-line expand. It show success but with some error ...