Server :: Difference After Copying Large Directory To A New Directory?
Apr 4, 2010
I m having a RHEL-5 sever.ABC directory size is 57GB after taking backup in the same disk with name ABC.bkp showing 56GB. i used below command to copy/backup. # cp -r ABC ABC.bkp (different sizes after copying)..I checked both the directory sizes by #du -sh <ABC> and du -ks <ABC.bkp>In both GB and KB there is lots of difference (200mb). why this will happen in copying? what is the solution for above question? what is the correct way of copying 1dir to newdir exactly?
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Feb 10, 2010
I've a directory containing around 2.8 lacs of files. I want to move them to another directory.If I use cp or mv then I get an error 'argument list too long'. If I write a script like
for file in ls *; do
cp {source} to {destination}
done
then because of ls command , its performance degrades.How can I do this?
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Jun 24, 2011
I am running CentOS 5.5 with a 14T ext4 volume. We are sharing out a few sub-directories via NFS. Our customer was doing some penetration testing with our web app that writes to one of those NFS shares. We are not sure if they did something to cause the metadata to grow so large or if it is corrupt. Here is the listing:drwxrwxr-x 1 owner owner 470M Jun 24 18:15 temp.badI guess the metadata could actually be that large, however we have been unable to perform any operations on that directory to determine if the directory is just loaded with files or corrupted. We have not run an fsck on the volume because we would need to schedule downtime for out customers to do so. Has anyone come across this before
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Jun 30, 2011
How would i go about copying files to a directory, yet skip the files that already exist in the directory, and also remove the files that are in the directory. For example:
Code:
$ls /dir1
img001.jpg
img002.jpg
[code]....
Now i would like to copy from dir1 to dir2, but the contents of dir2 would be:
Code:
$ls /dir2
img003.jpg
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Dec 18, 2010
I have a server with Fedora 13 with which I would like to get NFS working. I have looked up multiple howto's and tutorials, but I'm having a problem not addressed by any of them.Official how-to, another how-to, and another how-to.I have verified that nfs-utils, nfs-utils-lib, portmap, and system-config-nfs are installed and running. I have verified that I have, in fact, shared the directory that I want to share, and that the proper permissions are set.
I had to go through some gyrations to get the Belkin wireless N router to allow my server to have a static IP. However, I can ping the server from the nfs client (a toshiba satellite running mint 8), and vice versa. I have (for now) disabled firewalls on both computers. I think I have disabled SELinux on Fedora 13 (for now).When I attempt to connect to the server from the client, the output looks like this:Quote:
aragorn ~ # mount -v 192.168.2.101:/test /home/kelev/test/
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Sat Dec 18 12:21:09 2010
[code]....
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Jul 14, 2010
How to change the password of Directory Manager in RED HAT Directory Services through a ldapclient through command line or graphical.
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Jan 21, 2010
If I wanted to back up a large directory (13 GB) to DVD, what would be the best way to do this? Basically, what is the easiest way to make an archive that is split into volumes small enough to burn to disc?
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Apr 22, 2010
I'm planing to copy a productive mysql innodb file from one server to another, and the file size is around 300GB. As the file is keeping changing all the time, I have to shutdown mysql instance and copy the large data file to other server as quickly as possible.I should have to find a way to speed up file copying ... I'm wondering whether there's a way to copy file block by block.If the destination side block has same content, then bypass it.
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Jul 20, 2011
I'm using OpenSSH 5.5p1 on Fedora 15. I'm trying to get a chrootDirectory to work. Specifically trying to figure out why I can't write files to a sub-directory of the chroot directory. I created a user test_user and created a group called sftp. I added test_user to the sftp group. I edited /etc/ssh/sshd_config as follows:
Code:
Subsystem sftp internal-sftp
Match group sftp
ChrootDirectory /home/sftp_users/%u
X11Forwarding no
[code]....
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Sep 13, 2010
I'm having trouble copying a directory from one place to another in my build.xml file. I need to copy an image directory from the base directory (or root directory) to the dist directory so that it can be included in the jar file when I'm done compiling my java files.
This is my base directory:
drwx------ 1 enrique enrique 4096 2010-09-13 21:19 build/
-rwxrwxrwx 1 enrique enrique 1861 2010-09-13 22:17 build.xml*
drwx------ 1 enrique enrique 264 2010-09-13 21:19 dist/
drwx------ 1 enrique enrique 8192 2010-09-11 19:30 img/
drwx------ 1 enrique enrique 4096 2010-09-13 21:18 src/
The build/ and dist/ directories are created when I compile my java files from the src/ directory and img/ is where i have all my .png files which are needed for the program to display correctly.
Now for my Ant file: build.xml:
<?xml version="1.0"?>
<project name="PokerFiles4" default="compile" basedir=".">
<!-- Setting properties -->
<property name="dir.src" value="src"/>
[code]....
how I can get my img/ directory in the jar file would be appreciated, I'm writing a poker application to generate statistics for poker hands post-flop, and on the turn, like pot odds, hand odds, poker odds, outs, etc, I got the gui working, all I have to do is get the buttons in the app working, but all my classes are written and are working fine.
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Oct 9, 2010
This thread was nearly titled "The volume Filesysyem root has only 128 KB free space remaining" then I discovered the cause my Encrypted Private Directory had grown to 20GB eating all the free space on my Ubuntu system partition. Here's what happened:All was well with my system last night, left it downloading 2 GB of files from the internet to an NTFS drive to return to low space errors this morning.I checked and nothing had been downloaded to my Ubuntu partition, and even if it had, it could of handled the 2GB without issue. Did some reading on here and the first step I tried found the problem:
Code:
mark@media:~$ df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
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Jul 9, 2011
Ubuntu server recently had issues with a disk. fsck seemed to correct everything, but I have one directory that I can't delete, chown, chgrp, chmod, etc.
Here's the listing for the directory
dr-x-wxrwt 2 16709 25134 8192 2020-08-23 22:34 UDLEDATB.DBF
Note the sticky bit is set and the uid is a number that does not appear in /etc/passwd.
Even as root, any attempt to delete, chmod, chown, etc. gives "Operation not permitted".
Since sticky bit on a directory restricts delete to the owner and the owner is invalid, I am stuck. I need to delete this directory.
How can I fix this?
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Oct 18, 2010
I'm having a bit of an issue with Lucid installed via Wubi. I stuck the OS on its own partition (30 GB in size), and don't store any large files in the Ubuntu file system (when I download something large I move it to another hard drive.) I don't have anything wacky or esoteric installed on my system.
I've been consistently having a problem where, after a few hours or a few days of being booted up, Ubuntu warns me that my available HD space is dangerously small. The amount of available HD space Ubuntu sees then shrinks from a few GB to nothing within a few minutes, and the only way I can seem to solve this is to reboot. Taking a closer look at what's happening, my Home folder balloons in size until there's no more writable space recognized. But there are no files being created or added to, so it looks like there's a bug of some sort. This SEEMS to be correlated with watching videos (or maybe it's the pulling of large files from a mounted directory into RAM? My videos are all on another HD, as mentioned before). I can generally go a few days without getting the "low space" message, but I can't seem to make it through a full 2-hour movie without getting the error.
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Jan 17, 2011
While doing some tidying up, in the process of moving some directories off my temporary mint kde desktop, I lost the contents of an important data directory on my data partition. Just to try to explain a bit of background, I have been using mint kde4 as a stopgap measure until I got squeeze working again ( i have been having graphics problems) and had a symlink on the desktop to a /data directory on my data partition. As I just got squeeze working again, I was moving stuff that had accumulated on the mint desktop to a directory named /2010 in the /data directory on the data partition, but accidently copied/pasted the /data symlink along with the 3 other directories I had highlighted. So effectively, I was accidentally copying the /data symlink to /data/2010. For reasons I don't understand, the whole of the contents of the /data directory disappeared, and it is now totally empty. I thought, that cannot happen can it? So I opened gparted and sure enough, that partition, which previously had about 70 gb of data in the /data directory was empty apart from /lost+found and an odd text file I had stored there. The /data directory is still there, but empty. I shut down Mint and booted into squeeze, thinking it must be a mistake, but gparted shows it has all gone. How on earth can this happen? I have some of the data backed up but a fair bit of the recent stuff isn't, so I need to recover it. I hoped the file system check that happened when I booted back into squeeze would maybe repair anything that got broke, but it showed as clean during boot.
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Apr 15, 2010
I am getting ready to upgrade from Ubuntu 8.10 to 9,04 (I am a bit behind, I know). I just drag my home folder to a USB drive to back up and it should copy all the files (including hidden ones).
When I tried this, I get the error that Symbolic links cannot be created. Should I worry about this? Would this effect my backup in some fashion?
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Dec 21, 2010
im thinking of copying my /home directory by just click & dragging it to my external usb hard drive. then do a fresh reinstall. then just replace the new /home directory with the one on my hard drive(old home directory) will it have my original programs i used to have and all my settings & stuff?
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Jul 22, 2010
What I'm trying to do: write a script that will list all the directories in a given location. Ask the user to enter a number corresponding to the location of the directory in the list, and then moving into that directory.
I have written a script to do this, but it only works when I run it as: <user>$program_name and the script runs in a sub-shell. But, when it is run in a sub-shell, the changes made by the script go away after the script ends.
When I run it as:
<user>$. program_name
and the script runs in the current source shell, I get an error:
bash: cd: /home/dev/Project/dirname: No such file of directory
Code:
IFS='
' read -d '' -a ArrName < <(ls ~/Projects)
read filenumber
cd $HOME/Projects/${ArrName[$filenumber]}
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Mar 19, 2011
I'm trying to crawl a directory on a website and basically download everything in it. The structure is simple enough(but there are also multiple folders), but there is one thing that makes wget choke up.Both of the links work, but they are both the same thing. So wget will download the same file twice. How can I make wget ignore the first one? but this doesn't seem to actually do anything. It will still download the duplicate URLs
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May 19, 2010
I am currently trying to copy a directory of roughly 400GBs to dvd, have gotten myself stuck. I tried to tar and then split; however, I don't have enough room on my hard-drive to make a compressed tar and split it up and then burn to disk, so I need a way to tar the and compress the directory, split it, and burn to disk every 4.3GBs.
I went ahead and installed DAR as an alternative, as I hear it is designed for this type of task, but I can't figure out which way is heads or tails.
my OS is the newest version of ubuntu 10.
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Feb 17, 2010
I know it is possible to do... but I am not sure how to go about the whole thing. Here's the scenario. I run a lab. Lots of PCs. As time goes by, the older ones dont have the memory or disk space to run more modern apps. But I want to put them to use...
What I am trying to do, and have started, is the following: 1. Install Linux on a bunch of them, make a share on each of these. I've already installed FreeNAS on four machines. (Let's call these machines ClientA, ClientB, ClientC, and ClientD). And have made all the available diskspace
2. Install Linux on a fifth machine (call this Machine1) , and on this machine combine over-the-network all the shares from ClientA, ClientB, ClientC, and ClientD into one large "virtual" directory on Machine1. I know this is do-able, but what I hope to have is the total disk space from all the machines in step 1 to be combined for the purposes of saving files. Not sure which file system to use. For example, if all the other four machines have 2GB of space each, I want to be able to be able to save a 7GB file.
3. And then allow sharing of this one large directory using Samba.
4. Then allow lab users (not on any of the above mentioned machines) to be able to access the Samba-enabled large shared directory on Machine1 to read and write files. The user will have no idea where that the files[s] is/are not on Machine1, and that it maybe segmented in some way, nor should they care.
I understand the risks (if any one machine of ClientA, ClientB, ClientC, and ClientD goes down, lose probably everything). I am considering throwing mirroring into the mix (mirror Machine1's large directory), but that can wait.
So in the above scenario, what file system can I use on Machine1 to combine all the shares from ClientA, ClientB, ClientC, and ClientD to make one large "virtual" directory?
I've looked at UnionFS, but from my understanding while it combines directories, the maximum file size is the size of the largest share. Is this true?
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Mar 13, 2011
I'm trying to resume copying from a mounted CIFS device to my local hdd with cURL. I tried
Code:
$ curl -C - -O file://myfile
and also
Code:
$ curl -C <manual offset> -O file://myfile
(looked up the manual offset using "$ wc -c")
This resumes copying if I cancel it eg with ^C.
But it does not work if I unmount and remount the CIFS device. cURL then ignores my given offset and continues again from start as if nothing were there without saying a word. With "-C -" the same effect.
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Aug 9, 2010
So I have a bunch of directories:
dir1
dir2
dir3
etc.
which themselves all contain subdirectories:
dir1subdir1subdir2etc.and at the lowest level they contain all of these jpegs that I need. The problem is that I only need some of them. They're named like this:
pic1.jpg
pic1_med.jpg
pic1_small.jpg
pic2.jpg
pic2_med.jpg
etc.
I want to just grab the ones without the size suffix and copy them all to another set of folders, while preserving the directory structure. The numbering all starts at 1 for each low level subdirectory, so I think that the directory structure is the only way to not get them mixed up.
I know that cp has a recursive option -r but how do I just extract the ones without the underscore? And then how do I preserve the directory structure when I move them over?
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Mar 12, 2011
How do I copy and/or move files to the base folder of a user? I don't know what is is called, so I do not know what to put in the my file "?" command? I know you would normally put mv filename /directoryname, but what is the base username called?
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Jun 26, 2010
Create a copy of the file above and call it commands.sorted. Use the vi command to manually sort this file. I.e. use yy to copy a line, P or p to paste a line, and dd delete a line. Order the commands with the two lines starting with double quotes first. Then list the rest of the command in alphabetical order.
Anyone have any ideas what he's talking about? Can I copy a file and rename it at the same time while copying it to the same exact directory again? Now sure what the two lines things means either. I have an email out to him but it usually takes a long time for him to answer me. I got alot of work to do so everytime I get hung up it kills me.
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Jan 22, 2010
I have uShare 1.1a setup to talk to my XBox 360. If I share a directory that has no subdirectories, the video files display on the XBox. However, most of my files are in sub-directories on a different partition - I don't really want to copy them to the share, but uShare doesn't seem to recognise any sub-directories or files contained therein.
I have tried setting up symbolic soft links directly to the video files (although this is a pain, it is better than moving the files)...
Code:
ln -s /home/jonftp/TV-Shows/Buffy/Season-1/Buffy-101.avi /home/share/Buffy-101.avi
...but these don't show up on the XBox either.
How can I get uShare to "drill down" the directory structure to list the files or how can I get uShare to follow symbolic links?
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Mar 3, 2010
I was wondering what is the difference between directory execute and read permission?Also, how do I recursively remove executable permission from a dir, but just apply it to normal files?
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Jul 2, 2010
Is there a way to recreate all the folders from one directory to another without copying over the contents of the folder? I've been trying to do something like this,
Code:for i in `ls $X`; do mkdir $PATH/$i; doneUnfortunately $i is deliminated by whitespaces in the filenames and not the actual folders.
$X contains only other folders so I dont have to worry about regular files but any kind of more "advanced" solution would work.
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May 30, 2011
I've done a low level format on them so they're completely empty. When I use them with my windows machines, they're absolutely fine. When I plug them into my Ubuntu machine, there is a hidden directory created called 'RECYCLER' which I'm assuming is for deleted files?However, it also creates a .exe file in this directory called 0x2D9FA278 which has an Icon with an H in it and a comment of 'Facebook Photo' This has the effect of making all the directories on the stick into shortcuts! I googled the file name and it seems to be some sort of Trojan, but I don't understand how it's go into my Ubuntu machine, I've scanned with ClamAV and it finds nothing.
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Jun 16, 2010
I am a student studying computer science course.
Well, I am facing problem when doing lab questions.
I must use DLXLinux bundled in Bochs (bochs.sourceforge.net).
I am required to use the /usr/local directory.
In /usr directory, there is no directory named 'local' but there is one thing called 'local@'. So, when I try to use mkdir command to create 'local' directory in /usr , there are error "cannot make directory.....".
Look at my screenshot at [url].
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Jan 18, 2010
How do you perform a long directory listing of all files in the /bin directory that have exactly three characters in their name?
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