General :: Copying Large Number Of Files From One Directory To Another
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?
I am facing problem in copying a large number of file 18 lakh (18,000,000) files from my personal hardisk to another hardisk each file is very small and size of folder is around 3.95 GB copying files using copy given by Windows is frustrating and I am not even able to compress file its giving me error that its not readable.And problem is I am not able to open this drive in Linux it showing me error there saying do diskchk in Windows and Windows disk check is also not able to repair this drive and goes into some mode unsolvable.Is there any way to open disk with error to open in Windows and if not any way I can copy data faster?ERROR: Disk labled EDU is corrupt go to windows and chkdsk /f there and reboot into window 2 times.
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?
For my research I have some very large files that are basically millions of lines of ten columns of numbers. These files can be up to 5 GB in size. Recently I noticed that when I made a copy of one of my files, some exclamation points appeared in it where there should not be any: in front of random numbers throughout the file. Making another copy of the file would result in exclamation points in front of different numbers in different parts of the file. Doing this many times has given me up to four exclamation points in different parts of the file. Sometimes the file copies just fine without producing any extraneous exclamation points.Additionally, I have occasionally seen a "^K" where there should be a newline (the data that should have been on the next line was instead on the previous line with a ^K in front of it) in copies that I have made of my files. I don't know if this is related or not.
I understand that chroot is usually used to provide security, however, for my issue, security is a big don't care. I am very new to using chroot and don't fully understand how the chroot'd env works.
problem: Trying to use a vendor supplied cross compile environment. The environment runs as a chroot'd env and works just fine. I have a large number of additional modules that I wish to compile in the chroot'd environment. FYI, these modules are also (succesfully) compiled for other targets not using chroot'd env's. Copying the source files into the the chroot environment is not an option (don't have hours to wait for copies to finish and it would break the make system). Having them live in the environment is also not an option (the chroot build is a tiny part of the build process and we cannot revamp our entire source tree to accommodate it).
I am looking for a way to have the compiler in the chroot'd env have access to a path that is outside of the env and typically higher up in the same path that holds the chroot'd env. I have tried soft links (they don't work as expected). Hard links only work for single files and there are 10's of thousands of files that would need to be linked. I am not sure how I would go about exporting the additional files and then mounting the exported files in the chroot'd env (or if that would even work).
I've discovered that Dolphin seems to lose random files when copying many large folders.
I first noticed this a few months ago when I tried to copy my music library from one folder to another on the same HDD. It consisted of around 600 folders and 6500 files. During the copy there were no errors but after the copy I found that some of the newly copied folders were missing files. I put it down to human error or a glitch.
Yesterday I tried to copy 13 folders containing rips of some of my DVDs. Each folder basically had one film of either 700MB or 1.4GB. Again no errors showed up during the copy but I found 3 of the newly copied folders were empty.
It's not so critical with music or films but I can't afford to lose work data like this.
Has anyone experienced or seen a similar problem with Dolphin? I'm going to have to do some more extensive testing but this is not good.
The first time I noticed the problem I was running KDE4.3.4 (I think) and now the latest was with KDE4.4.0.
I am using the diff command with the -r option, to compare a large number of files and files in subdirectories. My main interest is to find out which files have been changed, and not what the actual changes are, and since a lot of files has been changed, it would be a lot easier to view the file names only. Is there and option for diff that might do this, or does there exist a similar tool/command that could do the job?
I just bought a HP 3085dx laptop with an intel 5100 agn wireless card. The problem: copying a big file over the wireless to a gigabit hardwired to the router computer only gives an average 3.5MB/Second transfer rate. If I do the same copy from my wireless-n macbook pro to the same computer. I get a transfer rate of about 11MB/sec. Why the big difference? I noticed the HP always connects to the 2.4 GHZ band instead of the 5GHZ bands...
[jerry@bigbox ~]$ iwconfig wlan0 wlan0 IEEE 802.11abgn ESSID:"<censored>" Mode: Managed Frequency:2.412 GHz Access Point: 00:24:36:A7:27:A3 Bit Rate=0 kb/s Tx-Power=15 dBm Retry long limit: 7 RTS thr: off Fragment thr:off Power Management: off Link Quality=70/70 Signal level=-8 dBm Noise level=-87 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0
I am not getting any errors. I don't know why the bit rate is not known. My airport extreme base station typically reports that the 'rate' for the hp is typically 250~300MBi and about the same for the MacBook Pro. The hp is about 6 inchs away from the base station. Is there anyway to get the rascal to go mo'faster? Is there anyway to get the rascal to use the 5GHZ band.
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:
I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank.I don't have space on the used host to simply gzip all the files. I've googled this and see that there may be some combination of tar and/or gzip that will let me do this with some sort of redirection.
I really need and example line of how this can be accomplished. If my explanation seems rather sparse, I can supply more details.
i need to know how to find number of files in a directory? is there any system calls in fedora 12.And i need to know how to perform a operation if the that count increases by one?
I currently have a problem in running rsync on 64 bit Debian Jessie (although the problem also occurred with 64 bit Debian Wheezy)I am trying to use rsync to archive my home directory (which is on a hard disk) to a USB memory stick. The home directory is about 18GB in size and the memory stick has 32GB.
Unfortunately, rsync hangs after copying a certain number of files and the process eventually has to be killed. Rsync was rerun but hung again at about the same point as before.This has now happened several times. Each time the hang occurs at about the same point.Use of strace after the hang shows that rsync appears to be processing a pdf file at the time, although not always the same pdf file.I originally had the rsync hang problem on a PC which ran 64 bit Wheezy and which used a USB 2.0 port.
I now am running rsync on another PC, which runs 64 bit Jessie and which uses a USB 3.0 port..I have also tried three different USB sticks, two from one manufacturer and the third from another manufacturer.All give similar rsync hangs.
This problem is not exclusive to Ubuntu, I've experienced it in Windows and OSX as well, but it seems that almost every time I transfer a large number of files (i.e. my music collection) between my desktop computer and laptop via my external hard drive, I end up losing files for no reason. I usually don't notice the files are missing until later on, because I am never informed of any data loss. Now, every time I make a large transfer of files, I just do it two or three times to ensure that I don't lose any files.
We recovered a large number of files from a HD I messed up. I am attempting to move large numbers of files of a type e.g. .txt .jpg , into a folder by type to more easily sort through them.
Here are the commands I have mainly been trying with various edits:
Code:
Code:
So far the most common complaint I have gotten "missing arguments to execdir".
I'm trying to extract the sender id from a fairly large number of files and am having trouble assigning variables from a file. Here is what I have so far, (which is fairly kludgy I know, but it's been some years since I've done any scripting or programming, and I find that I have lost the knack to a large degree).
I want to move files from a $SOURCEDIR to a $DESTBASE/$DESTDIR. Under $DESTBASE there are many directories, and I need to test beforehand if a file from $SOURCEDIR already exists in any of them.
This is obviously extremely slow, and the real use case involves dozens of dirs and thousands of files. Creating a temporary "index" file for the find command (instead of running it every iteration) speeds it up a little, but it's still very clumsy.
What command will provide you with the number of files in your current directory? Choose one answer. A. ls -c B. ls | wc -w (this one) C. ls -n | count D. ls -wc (this one ?)
I am dual booting XP and Ubuntu 10.04, but in the future I will be getting a new machine and I will only be running Ubuntu and won't have access to iTunes. Because I have an iPod Touch, I have been trying to find workarounds for syncing everything that iTunes took care of in the past. One problem I have is managing movies. I have looked through various media players/iPod management tools (Amarok, Rhythmbox, gtkpod) and I am using Rhythmbox to sync my music and and attempting to use gtkpod to sync my movies.
gtkpod is able to sync songs (Tested with a few minute test clip) and short *.mp4 files (15mb I know for sure from test). I am unable, however, to get it to sync a movie (~700mb) I am able to drag it onto my iPod in gtkpod, but when I try to save the changes and write the files, it hangs at "Copying Tracks" at 0%. It eventually crashes during the couple times I have tried to wait it out. So this being my situation, my question is, is there a size limit to the *.mp4 files I can sync to my iPod Touch via gtkpod? is there any other tools that you know of that I can sync videos to my iPod with?
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.
I have a large number of log files, on a linux box, I need to cleanse sensitive data from before sending to a third party. I have used the below script on previous occasions to perform this task, and it has worked brilliantly (script was built with some help from here :-)
However, now one of our departments has sent me a CLIENT_FILE.txt with 425000+ variables! I think I may have hit some internal limit. I have tried splitting the client file into 4 with around 100000 variables in each, this still doesn't work. I'm loathe to keep splitting though as I have 20 directories with up to 190 files in each directory to run through. The more client files I make, the more passes I have to do.
I have on my windows machine several hundred files that are a format of .nc .ncs for a CNC machine. I need to convert them to txt which is something as easy as opening in notepad and then saving as .txt but there are so many that this kind of action would take way too long.
The reason I am writing the linuxquestions is because I would feel more comfortable in loading a live CD and using some sort of terminal command to do this than I would to download one of the many "freeware" type programs I have found for windows (even more so since I have had a root kit before and had to start all the way over to get rid of it).
I need to know:
1. Is this possible to do with the terminal without super advanced knowledge.
2. Can one please point me in the right direction; something to read or an example
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?
I was nosing around in my /home folder and I noticed that the /.thumbnails directory had 38,000+ files in it. That number seem a bit excessive to me. Is there a way to limit the number of files that are allowed to be in that directory, and maybe delete the oldest files automatically when the directory reaches it's limit in order to make room for the new incoming files, so there are no "directory full" type of errors?
I am trying to copy a file from a network resource on my Local Area Network, which is about 4.5 GB. I copy this file through GNOME copying utilities by first going to Places --> Network and then selecting the Windows Share on another computer on my network. I open it and start copying the file to my FAT32 drive by Ctrl+C and Ctrl+V. It copies well up-to 4 GB and then it hangs.
After trying it almost half a dozen times I got really annoyed and left it hung and went to bed. Next morning when I checked a message box saying "file too large to write" has appeared.
I am very annoyed. I desperately need that file. It's an ISO image and it is not damaged at all, it copies well to any windows system. Also, I have sufficient space on the drive in which I am trying to copy that file.
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.