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

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16
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3answers
24k views

add password to existing zip file with 7zip

Is it possible to add a password to an existing zipfile with 7zip without going to all the trouble of unpacking it and re-packing it again?
4
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4answers
7k views

Recursively unzip files where they reside, then delete the archives

I goofed up a setting on the backup software I use. Normally I would have the files from a network share get loaded into a spare drive, compressed into zip folders, then sent off to the offsite hub. ...
0
votes
1answer
27 views

Report All Files Hierarchically on a Zip-of-Zip Files from the Command-Line Interface

I have a WinZip parent file that contains hundreds of WinZip child files on a Windows 7 64-bit computer. Each child WinZip file has many "grandchild" files within it. I need to create a text file non-...
2
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2answers
1k views

Force all files in a NTFS compressed folder to automatically compress [Windows]

Is it possible to keep all the files within a NTFS-compressed folder compressed? For example, if I have a compressed a folder using NTFS compression, it will compress all the files inside the folder ...
8
votes
5answers
42k views

Reduce .wav file size

I am required by a distance education language course to record some audio and submit it. However, they are being absolutely unreasonable. I am only allowed to attach a file that is 5mb while my ...
2
votes
2answers
3k views

Mac zip archives on windows

What is the best way to open zip archives which are made on a Mac? Frequently when I open a zip archive the date file are 0 bytes, while the mac_osx folder is filled with the correct data files. Its ...
19
votes
8answers
73k views

How do I reassemble a zip file that has been emailed in multiple parts?

I received 3 emails each containing part of a zip file. The extensions end in .z00, .z01 and .z02. (Emailed as such to get around the typical 10Mb attachment limit per email.) I have put all 3 files ...
3
votes
4answers
531 views

What other archive formats save Date Created and Date Accessed?

7-Zip on Windows will save the Date Created and Date Accessed when compressing a .zip file, however it does not do this for its (referring to 7-Zip) native .7z format. Any Unix-based formats are ...
0
votes
1answer
491 views

archiving files without timestamp

I need to archive some files deterministically, so that I get the same archive file if the content of the files is the same. I need this for testing for equality of the archive files later. however, ...
1
vote
1answer
204 views

From the command line, how do I zip specific files and directories into one compressed folder?

I'm working in a directory that looks like this: folder >.git >css >img >js Archive.zip bla.html bla.yml During work on this project I very regularly have to zip up the ...
1
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2answers
1k 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 ...
2
votes
1answer
15k 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 Plan....
1
vote
1answer
385 views

Delete a file inside multiple ZIP archives on the OS X command line

I'm trying to delete files with specific extensions from multiple zip archives. For example I want to delete all .html files contained in the zip archives in the current path so I have tried this: ...
0
votes
3answers
6k views

Installing setuptools for python 2.7.3 on SL6 returns an error that I don't have zlib. But I do

I have a machine running Scientific Linux 6 It comes with Python 2.6 by default I've also installed Python 2.7.3 because I need to run some modules which only work with newest versions. This is ...
1
vote
0answers
103 views

Zip settings. How to concatenate results from multiple zip files?

So I was one of those fools that didn't realize that Windows 8.1 has removed the windows 7 recovery option for restoring old backups. Now I have a backup set (A folder containing ~1500 zip files) ...
5
votes
3answers
3k views

zip: Argument list too long (80.000 files in overall)

I need to compress 80.000 files into multiple zip files. This is the command I use: zip -s 200M photos_test/* However I get the following error: -bash: /usr/bin/zip: Argument list too long What ...
2
votes
1answer
1k views

Create .zip's on OS X without the “extra” MacOS files (like .DS_Store, MACOSX folder, etc) [duplicate]

Possible Duplicate: Compressing folders on a mac, without the .DS_Store OS X includes undesired, "extra" files when creating .zip's of folders that look poor in Windows & Linux. How to ...
32
votes
9answers
8k views

How to uncompress a 9GB file in Windows FAT32

I have a 2GB RAR file that contains a 9GB video file. I'm using a FAT32 file system. Now I want to unzip that file but after 4GB I get an error due to the FAT32 file size limit. Now I want to know ...
1
vote
3answers
13k views

Can you get virus by clicking .zip file? [duplicate]

I tried to uncompress a zip file but I get error “The compressed (zip) folder is invalid or corrupted”. Is it possible to get virus just by trying to uncompress the zip? Can zip extension be ...
1
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2answers
2k views

Can a zip file contain hidden files?

In Windows, a file can have an attribute marking it as hidden. In linux, a file's permissions can be set so that some users can not read/write the file (making it somewhat hidden to some users). Can ...
0
votes
0answers
182 views

Linux create zip file with custom directories in it

I'm new here. My task is to create a zip file from php code. I need to password protect it and the server runs php 5.5 and password protection is not supported there so I need to execute a command ...
11
votes
4answers
17k views

Best Secure Encryption for Zip Files via Linux

I want to use highly secure encryption for zipped files via Linux/Ubuntu using a command line terminal, what is the best command line tool to get this job done? zip -e -P PASSWORD file1 file2 file3 ...
0
votes
2answers
2k views

Why does Windows Media Center try to open zip files?

Notes: OS is windows 7, browser is latest firefox. After saving a zip file to the desktop, Windows Media Center opens up. I looked around its config settings but could not find anything related to ...
2
votes
4answers
4k views

DVD/CD burning .zip: is it more reliable, faster, longer lasting to burn a zip of files rather than the files as a folder?

Is it more reliable, faster, longer lasting to burn to CD/DVD a zip (or a few large zips) of files rather than the files as a folder? Just thinking if 1000s of small files would not be as efficiently ...
0
votes
1answer
599 views

Update a file inside zip with -u

Alright so i have a zip file called data.zip on my desktop. Inside test.zip is another folder called res and inside res is a file called info.txt I have used the zip -u command before to move a file ...
2
votes
2answers
473 views

7 zip archiving directory recursively

I zipped my old windows dir with 7 zip. It zipped the "Application Data" many time (hundreds) as shown here : C:\Windows.old\Application Data\Application Data\Application Data\Application Data\...
2
votes
0answers
32 views

Splitting a zip archive

I have a zip archive containing a big directory tree with many files. I'm using an application that does something with zip archives. The problem is that the application has a limitation on how many ...
0
votes
2answers
443 views

How to restore the ZIP icon on a file? [duplicate]

Possible Duplicate: How to restore Windows default Zip file functionality? I downloaded a game which was at first in a ZIP file. I don't know how but now every time I click it, it opens in a ...
0
votes
1answer
54 views

Can i save modification in compressed file folder? [duplicate]

When modifying documents that are directly opened from compressed file folders like RAR or Zip, I normally close them without dragging the files out of the rar or zip file. I used to do this in the ...
1
vote
1answer
453 views

File was deleted and then reappeared when folder was zipped

I am using Backtrack 4 Final, which is a Linux distro that is Ubuntu based. I had a directory that contained around 5 files. I deleted one of the files, which sent it to the trash. I then zipped the ...
38
votes
7answers
74k views

Which is more efficient - tar or zip compression? What is the difference between tar and zip?

I'm working in Linux environment and want to know about tar and zip commands. Which is more efficient - tar or zip? I also need to know the differences between the tar and zip commands. Can anyone ...
29
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4answers
78k views

Zipping folders and their contents into a .zip file in Linux

How do I make a .zip file that contains every file AND every folder in the directory?
1
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1answer
2k views

Full path while zipping?

I have the following files: ~/Dir1/file1.txt ~/Dir2/file2.txt Then I use the following command: cd ~ zip out.zip /Dir1/file1.txt /Dir2/file2.txt In the out.zip i can see two directories (dir1 ...
1
vote
1answer
627 views

zip file (with spaces in the files name) to unzip and rename files and zip back

I'm trying to rename the contents of a zip file to match the name of the zip file with a batch file. This is exactly what I'm trying to do : http://stackoverflow.com/questions/22853824/zip-file-to-...
2
votes
1answer
54 views

Extracting .rar files in Windows with current datetime

One thing I like about Windows zip files is that the extracted files automatically have the current time (as opposed to the original time). I have yet to find a way to apply the same for extracted ...
0
votes
0answers
156 views

Modify ZIP Folder Context Menu To Include “Unblock” Option, Or Other Solutions

Is there a way to modify the Explorer zip folder context menu so that when you right click on an empty space while browsing a .zip file in Explorer it will show an "Unblock" option? I already added ...
0
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0answers
61 views

(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 ...
0
votes
1answer
2k views

Unzipping archives, preserving folder hierarchy

I've got a problem and am not sure what it is, but hope someone can help me think this through because this has me stumped. Backstory: I wrote a Java app (Android) that unzips some zip files ...
1
vote
3answers
5k views

How can I open a .alx or .cod or .prc or .sis file on a computer?

I found a .zip file of something, and I downloaded it. Inside it were only a .alx and a .cod file (presumably of the same thing). I don't have a Blackberry. Is there a way to open one of the two of ...
12
votes
8answers
6k views

Does it take longer to download a zipped file than an unzipped file?

I once read somewhere that it takes longer to download a zipped file than an unzipped file of the same size, due to the nature of the zip file. Is this true or nonsense? edit: i'm speaking about ...
0
votes
1answer
166 views

Merging 2 zip files

I have 2 zip files: file1.zip file2.zip I want to compare the two zip files and then only extract the files missing in file2.zip (directory structure intact) so that I can merge them in. ...
1
vote
2answers
154 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 ...
2
votes
1answer
8k views

Identifiying a zip file that is not really a zip file

I have several files that a 3rd party program generated that have a .zip extension, however neither windows nor 7zip can extract it. In 7zip it does show me the file name of the uncompressed file ...
0
votes
0answers
144 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 -...
1
vote
1answer
758 views

Avoid unwanted path in Zip file in makefile

I want to create an archive for a given folder but without the folders name in the path... In fact I want to do the same thing that this post : Avoid unwanted path in Zip file BUT I'm in a makefile ...
0
votes
1answer
1k views

Windows folder has readonly attribute that cannot be removed

I have a zip file containing Eclipse workspace. When I unzip it all the extracted folders have read only attribute set to true. When I uncheck "read only" in properties dialog and click apply the ...
0
votes
1answer
511 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 ...
1
vote
2answers
968 views

How to make index of all files in directory, including subdirectiories and contents of ZIP files?

I need to make list of all files and folders in directory and its subdirectories, including contents of ZIP files. Is there any program that can create nice list of contents?
1
vote
1answer
2k views

How could I portably split large backup files over multiple discs?

Context: I make backups / archives, primarily of photos. I'm experimenting with Bup, which is designed for backup to hard disk. Basically it creates Git repos which include packfiles of up to 1GB. ...
0
votes
0answers
20 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 ...