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

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913 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
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3answers
3k 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 ...
10
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8answers
3k 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
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1answer
116 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. ...
0
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2answers
29 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
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1answer
4k 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 ...
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0answers
32 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 ...
0
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1answer
321 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 ...
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5answers
15k views

tar – extract discarding directory structure

unzip has a nifty option -j, whereby the directory structure of the archive is discarded, and all files are extracted into the same directory. Is there a way of making tar work in the same way? ...
0
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1answer
511 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 ...
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1answer
34 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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0answers
14 views

How to download single large size zip file into chunks from internet

The network on which i'm connected having restriction that I can't download single file which has size larger than 100 MB and I want to download a large single zip file (around 1.1 GB) from internet. ...
0
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1answer
47 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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2answers
40 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 ...
1
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2answers
416 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
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1answer
927 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. ...
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0answers
18 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
6k views

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

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' ...
2
votes
1answer
2k views

How do I add files from a directory to a .zip-File using the 7zip command line?

I am using the 7zip command line to zip-up files. How can I add all files and subdirectorys from a folder to a zip file (.jar archive file)? I used: 7zip.exe a -t7z file.zip C:\folder Thank you.
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5answers
4k views

How to open corrupted ZIP files?

How can I open (or repair) corrupted ZIP files on Windows? Is there a way to force 7-Zip to open them?
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votes
2answers
54 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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4answers
5k views

Free commandline Zip utility for Windows? [closed]

I'm trying to create scheduled task for copying a directory tree containing a very large number of small files from one server to another. Copying the tree directly takes a couple of days, so I was ...
48
votes
6answers
48k views

Zip Linux - View files in archive

How can I view the files in a zip archive without decompressing it ?
6
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3answers
135 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 ...
15
votes
4answers
15k views

terminal tool (linux) for repair corrupted zip files

I've a corrupt zip file. I've tried to repair it with zip -F file.zip and zip -FF file.zip but was not successful. Is there another terminal tool under Linux for repairing?
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1answer
20 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 ...
21
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4answers
28k views

Read the contents of a zipped file without extraction?

How can I see the contents of a particular file in an archive without extracting the .zip it is contained within? I'm using the Linux command line.
0
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0answers
74 views

Zipping multiple folders individually

I have a problem zipping multiple folders individually. I saw that you can do that using Winrar. I have managed to do it. But here is the problem: When you extract the archive made by Winrar, it ...
20
votes
6answers
13k views

On Linux/Unix, does .tar.gz versus .zip matter?

Cross-platform programs are sometimes distributed as .tar.gz for the Unix version and .zip for the Windows version. This makes sense when the contents of each must be different. If, however, the ...
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1answer
32 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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0answers
18 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.
6
votes
6answers
2k views

How to split a zip file across INDEPENDENT volumes

I have about 12 GB of image tiles made up of about 2 million files. I'd like to zip these up to make transferring them to a server simpler. I just plan on storing the files in the zip files for ...
3
votes
4answers
290 views

Multiple [Stand-alone] zip files creation?

How can I automatically zip a group of files into multiple zip files (say, 2mb in size for each file), and that each zip file is a stand-alone zip file? (i.e. not mult-volume zip files, that you can't ...
6
votes
5answers
1k views

How can I test all zip files in a folder to verify if they are corrupted or not?

There was a utility a long time ago called CFAtest that was doing this quite nicely, but it has disappeared. Basically, I am looking for a similar tool (preferably graphical) that will traverse a ...
0
votes
1answer
59 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 ...
0
votes
3answers
30 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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0answers
32 views

Downloading files from zip and extracting suddenly extracts random things?

I recently downloaded a gmod map of 5 mb and I got like 70 gb left as storage. Now I tried extracting the map to the desktop and all of a sudden it says:"Cant extract, need 11.7gb to extract" So I ...
0
votes
1answer
21 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 ...
0
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1answer
229 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 ...
20
votes
4answers
2k views

Can Double Zipping Cause Problems?

I have a directory that I have been storing a ton of files in. Among the 10ish types of files there are also .zips of other directories. In my personal experience I vaguely remember issues when ...
34
votes
5answers
3k views

Why is a 7zipped file larger than the raw file? [duplicate]

Possible Duplicate: Why doesn't ZIP Compression compress anything? I tried 7zipping an .exe file but it actually became larger. Is this the expected result?
19
votes
2answers
12k views

Is zip's encryption really bad? [closed]

The standard advice for many years regarding compression and encryption has been that the encryption strength of zip is bad. Is this really the case in this day and age? I read this article about ...
0
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0answers
29 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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votes
2answers
75 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 ...
3
votes
0answers
37 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 ...
1
vote
1answer
34 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 ...
9
votes
2answers
52k views

How to crack a password protected zip file

I recently downloaded a piece of software that came in a .ZIP archive, but the .EXE software inside of the archive had a password on it. The website that I would have gotten the password from closed ...
3
votes
2answers
2k 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 ...
3
votes
1answer
39 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 ...
2
votes
1answer
31 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. ...