Compression and archive format that stores one or more files into a single file, usually with a .zip file extension.

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(oldie not working on Win 8.0 x64?) Command prompt (.vbs) only solution to zip files and folders (batch .bat .cmd)

I worked with Can you zip a file from the command prompt using ONLY Windows' built-in capability to zip files? zip.vbs: Set objArgs = WScript.Arguments ZipFile = objArgs(0) ' Create empty ZIP ...
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2answers
186 views

OSX's command line zip creates root directory

I'm trying to compress files, directly into a zip. What happens is that the zip automatically creates an initial directory in the zip with the name of the zip. Example: zip -r0 myfile mydir/ Will ...
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2answers
104 views

7-zip extras for Linux

I want to pack a folder containing various resources and executables into a single self-extracting file and execute a command after that, "setup.exe" for example. I've successfully accomplished that ...
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113 views

Why is the output of this zip file automatically encrypted?

I just downloaded a zip file and extracted it using Windows 7's built-in zip extraction (right-click on zip file --> "Extract All..."). Somehow it resulted in folders that are automatically encrypted ...
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1answer
319 views

How to rename 7-Zip split files as name_00N.zip instead of name.zip.00N

On Windows, when I create .zip split files with volumes less than 20MB with a command like: 7z a name.zip files\* -v20M I get one or more files named name.zip.001, name.zip.002, etc. I need to ...
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3k views

zip: Unexpected end of archive

When I try to extract my 1.15GB downloaded .zip file am getting following error: ! D:\N750XXUCNG6_N750ODDCNG5_INU.zip: Unexpected end of archive I have tried this ...
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19 views

Compressing an OS after some slight changes has yielded massively different results - why?

I am using SUSE Linux on a Virtual Machine through VMWare Workstation. This morning, I zipped up a copy of the folder containing my VM (.vmx, .vmdk, .vmem, single snapshot and all) and sent it to my ...
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2answers
218 views

Linux zip and exclude directory in Bash script

I am trying to write a bash/shell script to zip up a specific folder and ignore certain sub-dirs in that folder. This is the folder I am trying to zip "sync_test5": My bash script generates an ...
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2answers
598 views

Decompress lrzip on Windows

I've happened upon lrzip as a compression tool, which compared to gzip, the compression was insane. lrzip compressed a 300MB text file to 7MB where as gzip only managed to get it to 100MB. I've ...
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1answer
317 views

Zip files that are downloaded get corrupted many times randomly

I regularly download my torrent directly, instead of using a client, via filestream. Lately I've noticed that my downloads get corrupted many a times, especially zip files. Yesterday I downloaded a 8 ...
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121 views

Have a self extract archive extract to specific folder

How can I create a self extracting archive that will extract the contents into a specific folder? Any program or method is acceptable on windows.
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1answer
86 views

intercept zip file download request to view contents?

user 'A' downloads a zip file from a web server via HTTP/HTTPS, and after downloading he immediately deletes that zip file from server. In this scenario,can user 'B' (not having direct access to ...
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3answers
81 views

Zip Icon changed to a blue 'A' associated with fontview.exe

I made the mistake of associating fontview.exe in the right click "Open With" window, trying to install a font from a zip folder in Windows 7. Now all my zip folders now have a blue "A" on them and ...
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1answer
111 views

Compress / Zip a folder periodically but use minimal CPU?

Similar to this question except, I need it to run with minimal CPU on the background? Also, if there's a 7zip solution that will be nice.
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1answer
106 views

Batch Script to ZIP Together Files With Same Names

I have 314 vector images I'm looking to submit to the various stock image sites I'm a contributor to, but a number of these require that the vectors be bundled into a ZIP folder with a JPEG preview ...
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47 views

Compressed file with a header containing all files within it, at the beginning of the file

I have noticed that most files resulting from a compression / archive process do not have a list of the files contained at the beginning of the resulting file, but rather at the end of it. For ...
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1answer
60 views

How to unzip selected files of a zip file in Mac

I have some very large zip files contains thousands of files. I only need to unzip one or two files within it. In Windows, this can be easily done with most common programs like WinRAR or WinZIP. But ...
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1answer
86 views

Is there any solution/utilities to compress and upload a large file simultenously?

Upload a large file via broadband connection takes time. Compress the file using max. compression ratio before upload also consume time. Is there any solution that may compress and upload file to ...
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1answer
76 views

ZIP will not extract all files on Debian

My machine runs Debian 6.0.7 and I have Zip 3.0 (July 5th 2008), by Info-ZIP. When I try to unzip a .zip file, 2~3 times out of 10 it would not extract everything. There would be 2-3 files missing. ...
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2answers
605 views

How can I achieve the maximum zip compression? [closed]

I would like to make a "standard" zip file which contain .jpg images. Which software and switches / options should I use to achieve the maximum compression ratio? I mean maybe I can make a solid ...
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1answer
433 views

Using a .bat file to pull a string from a text file within a zip folder

So, please bear with me. This is only the second batch file I've ever written and my first post anywhere on StackExchange. I'm writing a batch file that tells a remote server to run HP Array ...
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1answer
1k views

Recursively process zip archives to extract files while discarding specific format of files

On my Windows 7 machine, I have a directory full of downloaded dumps in ZIP archives. Each archive contains few text files, PDFs and rarely XML files. I want to extract all the contents of each ZIP ...
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2answers
47 views

Calculations for groups of data

I have 3 columns of data in an excel sheet. The first column represents zip codes, the second represents values in that zip code and the third column represents the frequency of that value in the zip ...
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3answers
283 views

When putting two identical files in a .zip, they take 2x space, can this be avoided

Say that you have a file you want to put in a .zip archive: zip a1.zip foo.dll My test .dll file is ~10MB, and the archive turns out to be 3.5MB Then you create a file with the exact same ...
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24 views

Why would my zipped file be the same size as the uncompressed files? [duplicate]

I am trying to zip 13 mp4s. The uncompressed versions of those files are 2.69GB. But when I zip them with 7zip, using Ultra compression level and any of the compression methods - including LZMA, the ...
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1answer
55 views

Should I extract before running?

Is it not wise to run an executable from a zipped file without extracting first? Someone explained to me that there is no need to extract first. He explained that zipped files are nothing more than ...
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2answers
108 views

How to use Linux zip to sync files

I want to "sync" my files to the zip, creating any new ones, updating any new ones, and the deleting ones from the zip that no longer exist. When I used -du, I see zip error: Invalid command ...
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60 views

Fast way to forward an Outlook email as a zip

I need to find a quick way to select an email in Outlook 2010 and forward the email as a zip attachment. The recipient will always be the same. The subject and body of the email will always be the ...
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1answer
30 views

How do I unpack .zip via FTP on Windows 8

I uploaded this .zip file using FTPRush to some FTP, now I need it to unpack, but can't figure out how. On FTPRush there's this command prompt when you click CTRL+R it's titled Send Raw Command to ...
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1answer
894 views

How to compress a large file to many smaller zip files with defined size?

I have a very large file, e.g. 100GB, and I want to compress it to many smaller zip file, with each file cannot larger than 1GB, what would be the most suitable commands to do it? remark: I want to ...
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1answer
1k views

Fix corrupted Unicode file names in a zip archive

A colleague gave me a zip archive of some data I need to analyse, but unfortunately the filenames have been corrupted somewhere along the way, either when creating the archive or when extracting them ...
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1answer
372 views

Extract specific folder from a tar.gz

I know this question was previously asked on this site before like here 1 and here 2 but no success for me. I want to extract the Measures folder from my S012011_csv.tar.gz zipped file. If I do tar ...
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259 views

Windows 7 ZIP folders not extracting

I am helping a client who has a problem with Windows zip folders. For any zip folder, he can open the folder and see the contents, but if he does a copy and paste to a different location nothing ...
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1answer
803 views

Change Excel Zip Compression Level in Windows

Excel compresses its files using Zip-Deflate and stores it. However, the compression level is far from the best. To reduce the size and send it across I have to unzip and re-zip it manually everytime. ...
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1answer
47 views

Move data with compression

I'm using win 7.I have disk ~2Tb which one I want to format so I need to move data from it to other disk, but the problem is that I have not another 2Tb disk and I think I can compress data(on the ...
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1answer
182 views

Command line - Some questions

I've created a batch file for zipping selected items in a folder. (The file is placed in 'Send to'). If I use the following code: for %%* in (.) do set CurrentFolder=%%~n* "C:\Program ...
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1answer
317 views

Zip files and Volume Shadow Copy

I back a lot of data up using WinRAR and I create a .rar file from these backups. Since I back up about 20GB of data at a time this process takes some time. Sometimes I need to open a few of the ...
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3answers
772 views

Which archive file formats provide recovery protection against file corruption?

I use my external HDD to back up my files, by putting them into large archive files. I have thousands of tiny files, and put them into archives of 500MB to 4.2GB in size, before sending them to the ...
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1answer
30 views

Browse archived website

I have html/webpage files stored in a folder locally on my machine. I can view this content just fine using any browser. However, long term, I would prefer to have the contents stored inside of some ...
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2answers
352 views

Error when trying to extract files from a zip file

When I try to extract files and opening the zip itself I get this error: ! C:\Users\Loko\Downloads\Textbook_1.zip: Unexpected end of archive Some people say redownloading is the only fix but it ...
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1answer
11k views

Unzip error “End-of-central-directory signature not found”

I have a ZIP file that open in Windown/MS Word, (actually it is a .DOCX file). Opening it with LibreOffice / Mac produces: General Error. General input/output error. File says: ../Commission ...
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2answers
197 views

Make a zip file, from string

I am downloading a zip file from the internet and I get it as a plain text string. I now want to save this to the disk, but how should I convert this text string to a file buffer? What is needed to be ...
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1answer
1k views

Creating a zip file with a timestamp

I have been trying to create a script which compresses a directory with a timestamp and move it to another location on the same server, but I cant seem to get TESTDATE to display on the zip file, ...
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1answer
769 views

How to add “extract here” or “p7zip” menu item? (Gnome3, Nemo)

I'm using Fedora 20 with Gnome3 and Nemo. I installed p7zip but I don't see a p7zip or "extract here" item when right-clicking on a .zip What can I do?
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31 views

While compressing the folder many other zip files creating during the process

I seen a strange thing never seen before while compressing the folder into the zip. When I start zipping my folder there are many zip files showing automatically during the process. Like say the ...
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2answers
119 views

ZSH browse content of zip file

Is there any way or plugin for zsh where I can browse content of zip files in place instead of unzipping zip file and than making zip again? I want to achieve same behavior as in Midnight Commander ...
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1answer
328 views

How do i unzip files from a nested folder?

Say i have the following .zip file: ZipFile.zip /zipfolder/ this.file that.file theother.file When i try: unzip ~/path/to/my/ZipFile.zip -d ~/path/to/my/destination/ ...
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1answer
127 views

What are the default programs to open docx, PDF and ZIP files on OS X?

I'm writing an article about DOCX, PDF and ZIP extensions. But first, I need to know the programs which are used to open these extension as default (without any third-party applications). I don't ...
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2answers
326 views

Using command-line to pack files individually into .zip format while keeping directory structure

I'm trying to create a cmd script that recursively traverses a directory and zip each file individually. This I have done here: for /R %%b IN (*.*) do ( "C:\Program Files\WinRAR\WinRAR.exe" a ...
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1answer
4k views

Unix zip: zip multiple folders in to one zip file without creating a top containing folder

I have a folder like this: -resources --graphics --sounds I want to zip graphics and sounds folder into a .zip file named resources.zip, which I will use zip -r resources.zip graphics/ sounds/ ...