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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4
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2answers
95 views

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?
12
votes
4answers
41k views

Reformat SD card to NTFS

I want to reformat a 16 GB SD card to NTFS so that I can use it to transfer large files (larger than 4 GB) from one computer to another easily, but my computer will only allow FAT ...
5
votes
1answer
633 views

Meaning of . and .. directories in linux [duplicate]

When display hidden file and directory in terminal using ls -la it show two directory i.e. . and .. and when list the content of dot(.) directory it contain all file and directories that is in it's ...
1
vote
0answers
16 views

OSX “._” prefixed file names

when i name a file with prefix "._" it just disappear, altrought, other "." beginning files are still visible what are "._" and how can i see them in finder? Note: i did enable to see files ...
0
votes
1answer
23 views

Prevent a file/folder being invisible [duplicate]

Is there a way to prevent a file or folder being set invisible ? I am working on an infected machine (which I cannot disinfect) that constantly makes the files and folders in my usb stick invisible. I ...
1
vote
1answer
24 views

Which file attributes are stored in the directory entries and which in the inodes?

I want to do some deduplication of old files, replacing duplicates with hardlinks. To minimize loss of metadata, I want to set the directory entry attributes of each new hardlink to the attributes of ...
2
votes
1answer
1k views

Move files from EXT to NTFS preserving symbolic links

When I try to move lots of files from an EXT partition to an NTFS partition in Ubuntu, it complains about "Filesystem does not support symbolic links", and fails. Of course NTFS does support symbolic ...
6
votes
2answers
3k views

How can I recursively clear the “Hidden” file flag on Windows Vista?

A friend's computer was recently infected with a virus. I hope the virus has been removed successfully. But, it appears that the virus set the "Hidden" flag on most directories and files on the ...
1
vote
2answers
351 views

Read error in large file

I have a MPG file, 2.1 GB. I tried copying it from my windows machine to linux one. Only about 1GB of data got copied (the resulting file plays fine), and then I got a read error. So, on the source ...
2
votes
1answer
985 views

Why are two files reported in RECYCLER when recycle bin is empty?

I have emptied the Recycle Bin. However, when I right-click on the RECYCLER folder on drive C and select Properties, it says "Contains 2 files, 1 folders". I see a folder in there with a random ...
2
votes
2answers
126 views

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 ...
0
votes
2answers
216 views

External HHD won't copy large files

I have Buffalo HD_PXU2 (with password protection) and I'm trying to move a very important file of 90 GB (it's a virtual PC Hard disk and should be taken all) but once I try to copy I get the message ...
3
votes
5answers
13k views

How to use Seagate hard drive for both Mac and Windows

I recently bought a Seagate for Mac 1 TB external hard drive. When I connect to my MacBook through the FireWire, it works fine, but I also have media on my Dell laptop which is running Windows Vista. ...
7
votes
2answers
5k views

Why should I make a separate partition for /tmp?

A few years ago I installed Debian which is my favorite OS. There are many things in Linux I don't understand. For instance: Why should I make separate partitions for /tmp, /var and so on? I ...
3
votes
1answer
72 views

Hidden Files in Linux

In Linux (specifically), what's the difference between making files hidden by adding a "." before the name, or adding a "~" after the name. I know that both work for files, and that only the period ...
1
vote
0answers
18 views

Backup a big file with binary diff

Edited here is my problem: I have a file A (10GB) and a file B (10GB). File A and B are slightly different (diff is around 500MB). I want to the file A to be exactly as B as fast as possible. One ...
3
votes
1answer
314 views

Anybody knows a good article on filesystem basics? [closed]

..or talented enough to write in place? Something like a chapter from "Computers for beginners". What is a directory, a file, what is .., ., /, \ and so on What is absolute, relative paths and ...
2
votes
8answers
2k views

Why does “ls -a” hide some existing directory from the root user?

Today I found something really interesting (at least to me) on one of our test servers: I can change into an existing directory from my actual working directory using a relative path, but that very ...
0
votes
1answer
21 views

Are 2 files of the same type with the same number of discrete properties the same size?

Suppose you have 2 uncompressed .RAW image files, each exactly 4096*4096 pixels in size, but one is purely 1 single color (say, #FF0000) and the other contains a segment from the Mona Lisa. The ...
1
vote
2answers
3k views

Unix recursive directory listing with full pathname of file and filesize

I'm trying list all files (recursively) with their full path name (including name of the file) followed by their size in bytes. I do not need any '.', '..' entries. I dont think anything in the 'ls' ...
0
votes
0answers
23 views

Can't read secondary drive; suspect file system damage; how to repair?

I have 2 hard drives in my PC. Drive D: is unreadable. I believe that the File System is damaged (NTFS). I tried a number of softwares but all of them recover file according to their types. I need the ...
1
vote
3answers
2k views

how to recover data from a logically corrupted external hard drive using testdisk

So I think ignored too many of my computer's warnings and disconnected my external hard drive without properly ejecting it and now it seems the file system is corrupted. Are there any programs that ...
6
votes
2answers
4k views

How to change the filesystem label on the vfat filesystem located on device /dev/sdb1?

I just followed the instructions from Cyberciti.biz to format my Kingston USB drive. Instead of ext2, I formatted the drive to vfat. I forgot to use the naming option when using mkfs.vfat (webpage ...
1
vote
2answers
51 views

Linux: Should I resist temptation to delete files in /tmp?

I sometimes look at the /tmp directory with all those files taking up disk space, and think "maybe I should go in there and do something about it." On the other hand, in my 10+ years of Linux use, I ...
2
votes
2answers
38 views

Do files occupy a different amount of space in NTFS and LUKS + ext4?

I have two volumes, one NTFS (15028048 14213120 51544), that corresponds to (1-K blocks, used, available), and the other is a LUKS + ext4 (14895184 13869752 245752). I checked the files inside ...
3
votes
1answer
324 views

How do I open a folder with an invalid name?

Folder name is ..( The folder was created during an Evernote export. I've tried to open, move, delete, and rename in the XP GUI and I get an error. I've tried the same in the command prompt and I ...
0
votes
1answer
303 views

How do I access a directory with the most recent timestamp in its name?

I have a set of directories on my linux box that have names like this: bulk-load_20090918-162100 The latter part is a timestamp. Is there any way that I can access the directory with the greatest ...
7
votes
5answers
9k views

Stuck choosing between ext4 and ext3 for the file system

I was in the process of installing Ubuntu 11.10, but got stuck choosing which file system to use. ext3 and ext4; which is better for a personal desktop? If ext4 is better, will it work well on my ...
0
votes
1answer
78 views

Ubuntu 12.04.5 LTS stuck at bootscreen on Virtual Box 4.3.10

I had a running Ubuntu 12.04 VM on a Windows 7 host with Virtual Box 4.3.10 - until yesterday. Somehow, my host OS crashed and with it the still running VB. Now, when I try to start the VM again, it ...
0
votes
0answers
13 views

Show read-only files from SSD card on Mac OS X

I have photos on SSD card and I'm unable to view read-only files after copying the files to my computer. The photographer has used that read-only indicator to mark the taken photos to edit. Using: ...
0
votes
1answer
23 views

CrashPlan don't cross filesystem boundaries

I have replaced my backuppc to CrashPlan Family. CrashPlan is very feature-full, but I can not force backup to do not cross filesystem boundaries, like rsync -x. It would be a killing feature, because ...
1
vote
1answer
135 views

ext4 fs not recommended for SSD's? Alternative FS [closed]

I read ext4 journalling fs is not good enough for SSD's by some anonymous posts. while phornoix review shows JFS, not a known FS for average Desktop user is considered best for SSD. I believe JFS is ...
5
votes
1answer
459 views

Best practice for storing custom commands (Unix)

I wish to know if there's any standard or recommended place to store your own custom commands (should you prefer not to install them in /usr/local/bin)? I'm referring to small gimmicks that I, ...
0
votes
1answer
20 views

How do i find where my apache2 is installed in my centos server?

What methods can I use to find where my apache2 is installed on my centos server? btw, i have cpanel installed. I want to edit my sites-available entries and point one of my domains to another ...
1
vote
1answer
430 views

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 ...
2
votes
1answer
107 views

How does file systems know which folder a file is in?

The index nodes contain meta data and points to where the actual data is. But how does the system know where in the directory tree the file or folder is, and how does it translate the filename into an ...
3
votes
4answers
902 views

Linux filesystem with inodes close on the disk

I'd like to make the ls -laR /media/myfs on Linux as fast as possible. I'll have 1 million files on the filesystem, 2TB of total file size, and some directories containing as much as 10000 files. ...
1
vote
1answer
217 views

Check difference in file structure

On Linux I've done a rsync syncing supposedly everything in /home to /backup. Both of these disk are the same size, but after the sync du -h shows around 50G difference. I want to know what the 50G ...
36
votes
3answers
5k views

What are the various link types in Windows? How do I create them?

Is it possible to link two files or folders without having a different extension under Windows? I'm looking for functionality equivalent to the soft and hard links in Unix.
1
vote
0answers
26 views

How to remove directory with invalid name on running system root partition without third party software? [duplicate]

Somehow, most probably from one or another usb-born Linux, I got cute little directory named C: located on my C: NTFS partition, due to its peculiar name I can not operate on its directory tree as ...
0
votes
3answers
179 views

Unix/Mac [bash/c api]: detect if a given path points to a file on a removable device

Is there a *nix command or C api that will tell the type of the storage device given the path to the file (resolving the mounts, symlinks, etc)? I need to find out whether the file lives on a ...
1
vote
1answer
454 views

Which are the best file-systems/mount-configuration for each folder on GNU/linux?

One of the good points of Linux is that is easy to customize the partitioning scheme of the disk and put each directory (/home, /var, etc) in different partitions and/or different disk. Then we can ...
3
votes
4answers
688 views

How can I create a folder on our computer without providing any name to it?

Is it possible to create a folder anywhere on the system with a blank name?
0
votes
0answers
22 views

Recover bad superblock after using Testdisk EXT4

I Have a problem with my NAS Hard disk. I tried to make a raid-1 array but now my drive is corrupted. After that I made a mistake with "testdisk" and I selected ext4 instead of ext3. Now it's ...
3
votes
3answers
3k views

Why can't I mount the same filesystem at multiple points, and why can't a mount-point inode reference count be > 1?

I'm reading The Design of the Unix Operating System by Maurice J Bach, and have two questions regarding file system mounting: Why does the file system mount fail when the reference count of the ...
1
vote
2answers
213 views

How to create ext2 image without superuser rights?

I need to generate several ext2 images. The obvious way to do that is to create an image, mount it & copy the content. But it requires root permissions twice (to chown the files and to mount the ...
0
votes
1answer
708 views

Relationship of iNode indirect pointers to maximum file size

Let's say you have an iNode that is filled to capacity with no indirect pointers. If you give it one indirect pointer, does its maximum file size simply double?
0
votes
0answers
208 views

chown - operation not permitted as root

I'm using ISPConfig + Apache2 on a Debian server. I created a user which is going to be used for a certain client folder in /var/www/clients. Whenever I run the command chown -R user123 client2 as ...
0
votes
2answers
875 views

Can't copy files with 'additional permissions' to ext4 drive — files that have @ after permissions, like -rwxrwxrwx@

I am copying files from Snow Leopard to a mounted ext4 share via Samba, that's on a Fedora machine. Some files cannot be copied, and give this error: The operation can’t be completed because you ...
2
votes
2answers
924 views

Why do different du versions report different file sizes?

at our organization we have a windows file server, which I use to store a large number of files. This file server is mounted using smbmount on 2 clusters. Cluster A runs CentOS 4.8, and du version ...