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  • Locate Compressed files on servers

    - by frankdossing
    Hi, I would like to create a powershell script generating a report showing all compressed files/folders on remote servers. By compressed files I mean files compressed using the buildin Windows Compression utility, not zip. But I have a hard time figuring out how to localize the compressed files. Should I go with WMI or? Thanks Frank

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  • Does Compressed Sensing bring anything new to data Compression?

    - by anon
    Compressed sensing is great for situations where capturing data is expensive (either in energy or time), and thus less samples can now be taken. However, in situations like image compression, given that the data is already on the computer -- does compressed sensing offer anything? For example, would it offer better data compression? Would it result in better image search?... (Note: If you don't know what the field of Compressed Sensing is, please do not respond.)

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  • Motion Sensing Fog Machine Increases Savings and Spook Factor

    - by Jason Fitzpatrick
    This DIY add-on switches a standard fog machine from always-on to motion-activated–increase your savings and spook factor at the same time. Courtesy of tinker Greg, this modification involves a new relay and motion sensor mounted onto the existing switch of a store-bought fog machine. When the motion-sensor detects motion the fog machine releases a burst of fog for 5 seconds and then disarms itself for 10 seconds–long enough for the startled victim to move on and for the machine to recharge for the next passerby. Check out the video above to see it in action and then hit up the link below to see the project’s build guide. Motion Sensing Fog Machine Trigger [via Hack A Day] How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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  • SQL Server Compressed Backups Disk Space Needs

    SQL Server 2008 and later offers the ability to create compressed backup files. When creating the compressed backup, how much space is really needed and when does the space get allocated for the backup file? The Future of SQL Server Monitoring "Being web-based, SQL Monitor enables you to check on your servers from almost any location" Jonathan Allen.Try SQL Monitor now.

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  • Ubuntu One, compressed files

    - by user8179
    I have uploaded some files to my Ubuntu One account and it seems to work great most of the time. I usually upload them directly from Nautilus by right clicking the folder, using the ”Synchronize this folder” option, and then I make sure that the file I want to upload is published. Then I usually test the whole thing by trying to download it. I right click the file again to get its URL and I paste it into my Web browser. This usually works fine. But yesterday I uploaded two compressed files – ”.tar.bz2”. When I tried to open them after downloading them with my Web browser (Opera), it failed. I found that the file was bigger than the original file (2358 B instead af 2335 B – 15 B added at the beginning of the file and 8 B added to the end), and someone at the Opera channel (IRC) at OperaNet (Europe) figured out that the reason for this is that the server compress the file again, ”without telling Opera”. So to be able to extract the file I need to add ”.gz” to the file name and then extract it twice. If I downloaded it with Firefox however, I didn't need to do that, so maybe Firefox figured this out somehow in a way that Opera does not. Someone also tried to download the file with wget and some other browser and he also got the same result as I did with Opera, that is the file is compressed a second time by the server. I guess ”the server” is the Ubuntu One server, right? So why is this? Could it be done better somehow? Or did I do something wrong when uploading the files? It also seems like this extra compressing thing does not always happen, because when I tried again a few minutes ago, the file came down with its right size (2335 B), without an extra compression. But the other file (114 MiB) was still compressed twice.

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  • Estimating compressed file size using a list parameter

    - by Sai
    I am currently compressing a list of files from a directory in the following format: tar -cvjf test_1.tar.gz -T test_1.lst --no-recursion The above command will compress only those files mentioned in the list. I am doing this because this list is generated such that it fits a DVD. However, during compression the compression rate decreases the estimated file size and there is abundant space left in the DVD. This is something like a Knapsack algorithm. I would like to estimate the compressed file size and add some more files to the list. I found that it is possible to estimate file size using the following command: tar -cjf - Folder/ | wc -c This command does not take a list parameter. Is there a way to estimate compressed file size? I am also looking into options like perl scripts etc. Edit: I think I should provide more information since I have been doing a lot of web search. I came across a perl script(Link)that sort of emulates the Knapsack algorithm. The current problem with the above mentioned script is that it splits the files in their original state. When I compress the files after splitting them, there are opportunities for adding more files which I consider to be inefficient. There are 2 ways I could resolve the inefficiency: a) Compress individual files and save them in a directory using a script. The compressed file could provide a best estimate. I could generate a script using a folder of compressed files and use them on the uncompressed ones. b) Check whether the compressed file's size is less than the required size. If so, I should keep adding files until I meet the requirement. However, the addition of new files to the compressed file is an optimization problem by itself.

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  • View/Find all compressed files on the server?

    - by Volodymyr
    I need to find all compressed files/folders regardless of file format on a Windows Server 2003 machine. Search options do not provide this capability. Is there a way to list/view all compressed files? Perhaps, this can be done by PowerShell using file/folder attributes and put into a txt file with file location. UPD: Under compressed files/folders - I mean files which appear in blue color in Explorer after changing file/folder attribute.

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  • Ubuntu Server won't boot with "zip2: Compressed file ends unexpectedly" error

    - by Oetzi
    I am trying to boot lucid server on my new VPS but its giving me some problems. The boot gets to a point where it hangs. At this point it says: No such file `modules-2.6.31-20-server-amd64.tar.bz2' zip2: Compressed file ends unexpectedly You can use the `bzip2recover' program to attempt to recover data from undamaged sections of corrupted files. tar: Child returned status 2 tar: Exiting with failure status due to previous errors Module installation failed. Does anyone have any ideas how I might be able to fix this? Sorry that this is rather vague!

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  • Read an object from compressed file generated from ActionScript 3

    - by Last Chance
    I have made a simple game Map Editor and I want to save a array that contain map tile info to a file, as below: var arr:Array = [.....2d tile info in it...]; var ba:ByteArray = new ByteArray(); ba.writeObject(arr); ba.compress(); var file:File = new File(); file.save(ba); I had successfully saved a compressed object to a file. Now the problem is my server side need to read this file and decompress the array out from the file, then convert it to a Python list. Is that possible?

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  • read object from compressed file that generate from actionscript3

    - by Last Chance
    I have made a simple game Map Editor, and I want to save a array that contain map tile info to a file, as below: var arr:Array = [.....2d tile info in it...]; var ba:ByteArray = new ByteArray(); ba.writeObject(arr); ba.compress(); var file:File = new File(); file.save(ba); now I had successful save a compressed object to a file. now the problem is my server side need to read this file and decompress get the arr out from file, then convert it as python list. is that prossible?

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  • Error while zipping files with unicode characters in names with Win7's "send to > compressed (zipped) folder"

    - by user1306322
    When I try to zip files containing unicode characters in their names, such as © or ™, I get the following error: [Window Title] Compressed (zipped) Folders Error [Content] 'C:\Asd™.txt' cannot be compressed because it includes characters that cannot be used in a compressed folder, such as ™. You should rename this file or directory. [OK] This only became a problem when I reinstalled Windows 7. I probably had some resources necessary from this error to be resolved automatically, but it's almost clean installation now and I can't zip files. How do I fix this? UPD: Some time passed since I posted this question, I installed some of my usual applications, but the problem still exists and I'm not sure if it can be fixed by installing some specific application from before.

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  • Saving a compressed text attachment results in empty file

    - by Brandon
    I have a text document with compressed text in it, the text is auto generated by a program. The text document is fine on my machine (Vista 32-bit), and can be used normally. The other person can also create and use these files just fine. (XP 32-bit) However when I email it to someone else (Outlook 2003 on both machines) the attachment is sent fine (5kb) but when the other person tries to save it somewhere, the saved file is empty. (64b) At first I thought Outlook didn't like compressed text files (security risk maybe?), but I can receive the text files just fine. Is there a setting somewhere on the other persons machine that tells Outlook not to trust compressed text? Can anyone think of a reason why these files are being saved as empty text documents?

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  • How to treat compressed folders as files using ShellObject from WindowsAPICodePack?

    - by JustABill
    I am trying to implement a filesystem browser using the WindowsAPICodePack for C# (.Net 4), and it works pretty well, except that the ShellObject system treats zip files as folders, whereas I'd prefer they be files. Is there some way I can force it to work this way? The low-level interop it does is beyond me. As far as I can tell, internally it asks if the item is a Folder or a Filesystem element. It then uses this (and some type checks) to figure out what it actually is. Is it safe to force it to treat it as a file if it's Compressed? Or do I have to do something else?

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  • How to avoid compressing compressed files

    - by Gzorg
    Most compression programs compress all files by default. But when archiving a folder containing already compressed files, there is no need to compress them a second time, such as archives, packed setup program, jpg, movies, mp3,.... Are there any compression programs that allow an arbitrary list of type of files to be stored while the others are still compressed ? It looks like Winrar can't. I expect this would be doable with tar+gz/bzip2 and some scripting in various ways. Edit : Winrar can

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  • Compressed disk image on Linux

    - by Aaron Digulla
    I just got my new computer with a much bigger harddisk. I think I copied all important files over but just to be sure, I'd like to keep a disk image of my old disk. To save space, I'd like to compress it but I didn't find an option to mount a compressed image. My goals: Result must be easy to access No need to decompress the whole thing before I can access anything Files should be quick to locate - no TAR/CPIO archive Necessary space should be less than just copying the files over So ideally, I'm looking for a read-only, compressed file system which I can create in a file and which grows automatically.

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  • Determine compression ratio for Windows compressed drive

    - by munrobasher
    Is there a Windows 7 native way to display the overall compression ratio on a Windows compressed drive? As part of our disaster recovery process, we're copying some key system folders onto 2TB external hard drive, encrypted using TrueCrypt and copied using robocopy. The drive is compressed and I'd like to see what kind of compression ratio we're getting and whether it's actually worth the performance overhead. I know that TreeSize can possibly do this (as mentioned in another post) but want a OS native way if possible. Thanks, Rob.

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  • Where is vmlinux on my Ubuntu installation?

    - by Jason Baker
    I'm trying to work with starting up oprofile, and I'm running into a problem at this step: opcontrol --vmlinux=/path/to/vmlinux Ubuntu has no package called vmlinux, and when I do a locate vmlinux, I get a lot of files: /usr/src/linux-headers-2.6.28-14/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-14/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-14/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-14/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-14/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-14/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-14/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-14/include/asm-generic/vmlinux.lds.h /usr/src/linux-headers-2.6.28-15/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-15/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-15/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-15/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-15/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-15/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-15/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-15/include/asm-generic/vmlinux.lds.h /usr/src/linux-headers-2.6.28-16/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-16/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-16/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-16/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-16/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-16/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-16/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-16/include/asm-generic/vmlinux.lds.h Which one of these is the one I'm looking for?

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  • IIS7 Compression CSS files only compressed when dynamic compression is enabled

    - by Paul
    If anyone can help it would be appreciated. I would like to enable compression for static files within IIS7 (for the sake of simplicity I'll just refer to static css files for the time being). The problem I'm getting is that css files are only compressed when both dynamic and static compression is enabled in IIS for the website. What I really want to achieve is css compression (static file) whilst leaving the dynamic (aspx) pages as uncompressed for the time being (to avoid unnecessary CPU load). I am puzzled as to why just leaving 'static compression' enabled causes css files to be returned uncompressed. My applicationHost.config file has not be altered and looks like this: <httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files"> <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" /> <staticTypes> <add mimeType="text/*" enabled="true" /> <add mimeType="message/*" enabled="true" /> <add mimeType="application/javascript" enabled="true" /> <add mimeType="*/*" enabled="false" /> </staticTypes> <dynamicTypes> <add mimeType="text/*" enabled="true" /> <add mimeType="message/*" enabled="true" /> <add mimeType="application/x-javascript" enabled="true" /> <add mimeType="*/*" enabled="false" /> </dynamicTypes> </httpCompression> The server-wide compression setting within IIS is set to 'Dynamic Disabled' and 'Static Enabled' from the Server Features Compression page. The web-site compression setting (Server Sites MyWebsite Features Compression) is where I am enabling and disabling dynamic compression as detailed above. Any help would be really help me get unstuck on this. Thanks

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  • Where is vmlinux on my Ubuntu installation?

    - by Jason Baker
    I'm trying to work with starting up oprofile, and I'm running into a problem at this step: opcontrol --vmlinux=/path/to/vmlinux Ubuntu has no package called vmlinux, and when I do a locate vmlinux, I get a lot of files: /usr/src/linux-headers-2.6.28-14/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-14/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-14/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-14/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-14/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-14/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-14/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-14/include/asm-generic/vmlinux.lds.h /usr/src/linux-headers-2.6.28-15/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-15/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-15/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-15/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-15/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-15/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-15/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-15/include/asm-generic/vmlinux.lds.h /usr/src/linux-headers-2.6.28-16/arch/h8300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-16/arch/m68k/kernel/vmlinux-std.lds /usr/src/linux-headers-2.6.28-16/arch/m68k/kernel/vmlinux-sun3.lds /usr/src/linux-headers-2.6.28-16/arch/mn10300/boot/compressed/vmlinux.lds /usr/src/linux-headers-2.6.28-16/arch/sh/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-16/arch/x86/boot/compressed/vmlinux_32.lds /usr/src/linux-headers-2.6.28-16/arch/x86/boot/compressed/vmlinux_64.lds /usr/src/linux-headers-2.6.28-16/include/asm-generic/vmlinux.lds.h Which one of these is the one I'm looking for?

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  • PXELinux and compressed kernels/images

    - by Yvan JANSSENS
    Is it possible to boot compressed kernels with a compressed initrd with PXELinux? First, a little background: We created a custom Linux distro, for diskless OpenCL computing nodes. We want those nodes to fetch their OS from the network. Our Distro is composed out of a kernel (duh) and a large initrd which is loaded into RAM and everything is executed from there. We chose to run everything off the initrd for two reasons: NFS was not an option to serve the filesystem's extra contents Fast file access from RAM. No persistent storage needed, data and config is pulled dynamically through a SOAP service. Now our initrd is about 450M in size. At our network speeds, it takes about two to three minutes to load a single client. Will compression speed up te downloading, and if yes, which one should be used? Is LZMA supported by PXELinux, or do we need to stick to bzip2 or gzip? Because of the 2-3 minutes loading time, booting 15 nodes over the same network link takes quite a lot of time. We decided not to use hard drives or CD/DVD drives, for financial reasons (cheapest HDD @ €30 times 15 is a lot of money saved ;-) ) So, our question is: what compression options are available for this setup? And how do we do this? Thank you for your time! Yvan Janssens

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  • ASP.NET Create zip file for download: the compressed zipped folder is invalid or corrupted

    - by Jason Braswell
    string fileName = "test.zip"; string path = "c:\\temp\\"; string fullPath = path + fileName; FileInfo file = new FileInfo(fullPath); Response.Clear(); Response.ClearContent(); Response.ClearHeaders(); Response.Buffer = true; Response.AppendHeader("content-disposition", "attachment; filename=" + fileName ); Response.AppendHeader("content-length", file.Length.ToString()); Response.ContentType = "application/x-compressed"; Response.TransmitFile(fullPath); Response.Flush(); Response.End(); The actual zip file c:\temp\test.zip is good, valid, whatever you want to call it. When I navigate to the directory c:\temp\ and double-click on the test.zip file; it opens right up. My problem seems only to be with the download. The code above executes without any issue. A file download dialog is presented. I can chose to either save or open. If I try to open the file from the dialog, or save it and then open it. I get the following dialog message: The Compressed (zipped) Folder is invalid or corrupted. For Response.ContentType I've tried: application/x-compressed application/x-zip-compressed application/x-gzip-compresse application/octet-stream application/zip The zip file is being created with some prior code (that I'm sure is working fine due to my ability to open the created file directly) using: Ionic.zip http://www.codeplex.com/DotNetZip

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  • Estimate compressed file size in tar.gz

    - by liori
    I've got a set of .tar.gz files, which are duplicity backup files (either full backups or incremental ones). I'd like to compute which directories take the most space on backups. This will most probably be a different figure to calculating which directories take the most space on a live filesystem because I need to account for how often are files changing (and therefore taking space on incremental backups) and how compressible are files. I know that while many other archive formats store compressed files as different entities inside the archive file, .tar.gz files do not, and therefore it is impossible to get an exact amount of storage taken in the archive by a single file after compression. Are there any tools to calculate at least some estimates?

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  • BOOTMGR is compressed Windows Server 2008

    - by AbdulAziz
    This is my first question to "superuser", hope you guys help me. I have Windows server 2008 R2 Enterprise installed in my system, by mistake I clicked the "Compress disk" of my C drive. Now when I am restarting, I met a message at start up that "BootMGR is compressed, Press Ctrl + Alt + Del to restart" Its been 2 days I am searching every where to solve the problem, but all I found only for Vista and windows 7 only. Can any one help?

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