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

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51
votes
5answers
2k views

How to “unextract” a zip file?

I extracted a zip file into a non-empty folder. The zip file has lots of files and a deep hierarchy, that merged with the existing tree of the target directory. How can I remove the files and ...
0
votes
1answer
485 views

Windows 7 extract and compress zip has been compromised by NCH's Express Zip program. How to fix?

I installed NCH's Express Zip, and now I can no longer use Windows 7's way of extracting and compressing. I would like to get rid of the NCH program and get back the original functionality of windows ...
15
votes
4answers
31k views

How to make 7-Zip faster

I normally use WinRAR over 7-Zip simply because it's faster and only a little less efficient with compression. I did a few tests on different filetypes and sizes comparing the 7-Zip and WinRAR default ...
1
vote
2answers
2k views

Windows 7 Explorer Preview Pane for zip files

I was wondering if there is a possibility to add .zip file to the explorer preview pane (Windows 7 64 Bit). For example if a folder contains a .zip file i would like to see the content of the .zip ...
1
vote
3answers
79 views

A better way to extract lots of files from zip archive in bash

I have a zip archive with lots of files and a plaintext file with list of files (~10000 items), that I need to extract from that archive using bash. What is the best way to perform that operation? ...
2
votes
2answers
2k views

Setting WinRAR to exclude files with the exact filename I specify from being extracted from an archive

How can I configure WinRAR to exclude files with the exact filenames: thumbs.db or .DS_Store (ignoring case) from being extracted from an archive (all directory levels within an archive)? Files with ...
1
vote
1answer
199 views

jzip installed chrome opening www.searchnu.com/102

I am in pain trying to figure out how to remove www.searchnu.com/102 from chrome after installing jzip on my windows 7. How can I do that? Is this a virus? I ran a scan and it didn't return anything
2
votes
1answer
1k views

Uncompressing a file despite CRC errors

I have downloaded a multipart ZIP archive. It contains a video file. Unfortunately, IZarc reports a CRC check fail when extracting the archive. Downloading the archive again is a long task, since I ...
1
vote
2answers
134 views

Font file association has been changed? [duplicate]

Possible Duplicate: How to restore Windows default Zip file functionality? I seem to be having a bit of a problem. Usually I download free fonts, because it's good to have different ones ...
1
vote
3answers
1k views

zip.exe found in C:\Windows

I was looking at my C:\Windows folder on Windows 7 today and noticed a really old version of zip.exe Copyright (C) 1990-1999 Info-ZIP Type 'zip "-L"' for software license. Zip 2.3 (November 29th ...
0
votes
1answer
3k views

Change the “temp” folder used when zipping/archiving files?

I'm trying to zip up a huge file, but it fails since my C:\ drive doesn't have enough space. How do change it to use another drive?
2
votes
0answers
785 views

Extracting a zip file via VBScript running as a service

Details OS: Windows 7 UAC: Disabled What: I am running a VBScript that extracts a zip file, and the vbscript is kicked off by Jenkins service. I need to use the VBScript, and I can not use external ...
0
votes
1answer
149 views

Zip, tar: is there a file table

Is there a file table, or inode structure (like in filesystems) of a zip or tar file?
1
vote
4answers
5k views

Why should I prefer 7zip over WinZip in Windows environment? [closed]

I know Winzip is not free and 7-zip is free . Other than this is there any reason why I should use 7ZIP over Winzip for compression ? I am using Windows 7 .
1
vote
2answers
3k views

File name: 'winmail.dat' Virus name: 'ExceedinglyInfected'

Everytime I send a zip file off via my corporate account the recipient gets this message back: FILE DELETED The original contents of this file have been replaced with this message because of its ...
4
votes
0answers
442 views

Fix encoding of German umlauts in directories and filenames (ü = u╠ê and so on)

I have many zip-files where there are encoding errors for the German umlauts (äüöÄÜÖß). They show up in both the filename.zip as well as in the included directories and files like this: Fünf = ...
0
votes
2answers
1k views

Is SecureZip compatible with any other ZIP programs?

I put some files into an encrypted archive with Secure Zip (was using a computer at another organization) and emailed them to some people. None of them have Secure Zip (nor do I on any of my own ...
1
vote
1answer
72 views

Specify directory within zip file when growing archive

I have a file at /tmp/mylib.jar which I would like to put into the lib directory contained in myarchive.zip. I know I can use the -g option to grow the archive, but I'm not sure how to specify the ...
0
votes
1answer
179 views

Multiple folders on server, create zip file for each

I have a large number of folders on a server that I need to zip. Each folder will be zipped to a separate zip file. Zip file name = folder name. After zip is created, delete folder. Can I do ...
12
votes
7answers
15k views

How to create a zip file compatible with Windows under Linux

I need to make a zip file available to all my Windows users visitors, so I naively produced a zip file with the Unix zip command (let's call it madeinlinux.zip). It opens successfully with WinRar or ...
2
votes
2answers
2k views

How can I create ZIP64 file and test it?

I need a zip file (ZIP64) for a test case, I put a bigfile of 5GB full of zeros and zipped it, but I don't know if is ZIP64. Should the ZIP file exceed 4Gb to be ZIP64? A 4Gb file for a test case ...
5
votes
2answers
4k views

Bash command to compress folder(s) with a password

How can I compress two folders into archive file (zip, gzip or something like that) with a password on the files? For example I have folder structure: rootDir dir1 dir2 dir3 dir4 I need bash ...
67
votes
20answers
73k views

Compressing with RAR vs ZIP

A lot of people are compressing files with RAR, sending compressed files with RAR and so on. ZIP is more standard and works on all platforms. Windows users have ZIP included and Linux users have no ...
0
votes
2answers
965 views

How to extract and erase the original compressed file on Windows 7?

I wonder whether there is an extractor tool that as well as extract the file contents, erase the original compressed file. Thank you.
30
votes
2answers
19k views

How secure are password-protected zip files?

In modern zip utilities like 7zip, you can specify a password when creating a .ZIP file. But, how secure is this? What encryption algorithm(s) are used to secure password-protected zip files?
1
vote
1answer
185 views

Convert 1 zip file into multiple via SSH

i have 1 zip file in my FTP with 10GB i must convert it into multiple zip files, for example 10 zip files with 1GB each. how can i do this via SSH? thx =)
0
votes
1answer
3k views

'zip' is not recognized as an internal or external command, operable program or batch file

I am trying the zip functionality on the windows host through command prompt. When I am running the command zip -r folder.zip folder it gives me error msg 'zip' is not recognized as an internal or ...
-2
votes
1answer
9k views

How to open vmdk files in VMware? [closed]

I have lots of .vmdk files: blabla-s001.vmdk blabla-s002.vmdk blabla-s003.vmdk How do I open them with VMware?
1
vote
2answers
1k views

Include empty directories in zip file with Linux

I'm trying to zip a directory a linux using the following command: zip -r file.zip . This works, but it isn't include the empty directories that I want to be included in the zip file. How can I get ...
0
votes
1answer
2k views

Is there a limit to compressed file size on Win XP?

I just compressed 11.6GB of data on my hard drive into a 4GB zip file using Windows XP Compressed Folders, and deleted the original data. I then found that the 4GB zip file is corrupt. Is this simply ...
3
votes
2answers
6k views

Compress files from OS X terminal?

In the Finder, there is this wonderful ability to right click on a file or directory, select compress from the drop-down, and end up with a zipped file. Is it possible to do the same thing from the ...
-1
votes
1answer
86 views

Why don't mp3 files use better compression techniques? [closed]

For instance, an mp3 can be losslessly compressed with 7zip to about 25% of its original size. I compressed an album and the whole thing is a 1/4 of the size. Each song is about a 1/4 of the size (a ...
0
votes
1answer
1k views

Unpacking windows PKZIP self extractable in linux

I use Linux, and I want unpack a file that is daily released by an external entity in an self-extractable zip format for windows. If I would do this only once, that would be ok for me to find a ...
3
votes
3answers
78 views

Zip file structure in Linux

I have a file in folder/football.jpg that I want to zip. So I zip with the command zip folder/football_zip folder/football.jpg It works, except that the Zip file contains the folder folder, which ...
1
vote
2answers
128 views

Maintain zip file structure

I have a directory main_folder first_folder second_folder empty.txt another_folder another_empty.txt I want to zip second_folder, and I'm in main_folder, so I zipped with ...
1
vote
1answer
58 views

Does dragging and dropping an audio file from a zip archive give the same result as extracting it?

I have been downloading podcasts and audiobooks from the Internet. Some sites put them in zip files, often including the _MACOSX files. The files are in mp3 and m4b formats and if I drag and drop them ...
0
votes
4answers
5k views

Why do large zip files become corrupted so often after downloading?

It seems that when I use a web browser to download a large zip file (2-4gb), I go to unzip it and viola, corrupted. This happens so often. Are browsers not reliable means to download a file (http) ? ...
0
votes
1answer
321 views

Would knowing the file names of password protected ZIP/RAR assist in cracking?

So I have a couple of password protected rars and zips (don't worry, this is for educational reasons only). I know the exact names of the files in those rars and zips. Dictionary attacking the files ...
0
votes
1answer
98 views

7Zip add string to zip name

I have a 7zip command line process that zips by date and its works well. The command creates a zip file with date IE 20121019.zip. However Id like to add a string to the file name. for example ...
6
votes
5answers
2k views

How can I archive a 30 GB file?

I have a 30 GB zip file containing an archive of digital materials available in the school library that I want to burn to DVD. Of course, 30 Gb is far too large for a single DVD and the content is ...
1
vote
1answer
341 views

7-Zip: Create a zip file from a subdirectory, with the same name as the subdirectory itself

I have a unique situation where I need the following folder structure (Windows) X:\LOGS\PRIMARY\YEARMONTHDAY e.g., X:\LOGS\HS\20121010 Folders are created every morning. Essentially I'd like to ...
0
votes
2answers
301 views

Seeking a GUI archiver with the ability to exclude files/folders with tickboxes

I've been searching for a GUI tool to create zip, 7-zip or tar archives that will allow me to include and exclude files and folders using a GUI. The dialog during archive creation should look ...
3
votes
3answers
3k views

Will Windows viruses infect RAR or ZIP files?

I heard from some techie person that .rar and .zip files never get infected by viruses. Is this true? If yes, then why such behavior?
1
vote
2answers
614 views

Change filename in zip

Currently I'm doing the following command in PHP exec("zip -j -P pass $zipname $filename"); The thing is the $filename is something like oawigufh.tmp is there any way to have the file in the ...
0
votes
1answer
414 views

Create a zip file that doesn't create a folder when opened, Mac OS X

I am wondering if there is any way of easily creating a zip file that contains a bunch of files. However, when I double-click to open this zip file, I do not want it to create a subdirectory with the ...
0
votes
1answer
980 views

General Compressibility Of Various File Formats [closed]

Has anyone come across list of which file formats generally compress well (in general algorithms)? Generally, text files .txt compress well, and media-files (.mp3, .avi, etc) do not compress well. ...
2
votes
2answers
467 views

Compress Files Directly to xpi

Some unzip tools enable to extract xpi files. I'd be glad to know if there's a program which also enables to compress files directly to xpi. Thank you.
5
votes
1answer
895 views

zip/tar/? files with depth parameter

I would like to zip files from a directory but only to a given depth. In the example below I would like to include files until a depth of 3: dir0/ dir1/ dir2 -> subdir1, subdir2 dir3 ...
0
votes
0answers
248 views

Is it possible to recover partial compressed files?

Of the most popular compression methods (7z, RAR, Zip, GZip) is there any of them that allows to retrieve the uncompressed data from a partial file? Imagine there is only one compressed file, and it ...
0
votes
2answers
950 views

Archive format & tool for large amounts of data (50gb+)

I only realised this afternoon that the ZIP format has a limit of what appears to be around 20gb. I am trying to automate an archive process (using Automate) to zip/rar/whatever a collection of ...