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

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How to compress a bunch of files efficiently?

Let's say you have a lot of files to archive. They are in several different file formats (txt, docx, pdf, png, jpg, mp3, zip, etc.). What are the best practices to compress them all, so that they ...
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Zipping files according to filenames

Daily we receive five files like this: vi_250000364846.dqa_report.xlsx vi_250000364846.3553_report vi_250000364846.MSR_report vi_250000364857.3553_report vi_250000364857.dqa_report.xlsx The numbers ...
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TSQL XP_CMDSHELL 7ZIP UNZIPPING

I am struggling to unzip a file from using 7-zip. I am running from SSMS the followng command, password is replaced by text "password". exec XP_CMDSHELL 'C:\"Program Files (x86)"\7-Zip\7z.exe e -...
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Fastest way to compress (i.e. archive into a single file) millions of small files on a powerful cluster to speed up transfer of files

IMPORTANT NOTE: Compression is NOT the goal, archiving/taping (packing all of the files into a single archive) is the goal. I want to backup a single directory, which contains hundreds of sub-...
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Restoring file after zipping, when it become binary [duplicate]

I zip my python file into file.py.gz on Linux. After that my file become something like a binary file. When I am open file with vim, on the bottom was a text " [noeol] [converted]. I want to restore ...
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120 views

How to slice an epub into smaller volumes?

Some Microsoft books, and O'Reilly as well, are on the excessive side. Starting from PDF, calibre can conver to epub easily. Or, some are available as epub and even mobi. Dealing only with `epub' ...
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33 views

extract file from zip that is inside another zip

I have a file structure as so: archive.zip contains: directory archive which contains: zip_1.zip contains: file.txt zip_2.zip zip_3.zip Is there a way that I ...
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Create self-extract archive with specified path from command line

I'm currently using 7zip as archive creator and 7zip SFX Builder as SFX packager, because I need to specify InstallPath which is not supported by vanilla 7zip. The problem is that I have to manually ...
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Extract specific directory from zipped archive to different directory using Windows CMD shell

GitHub zip files normally contain a single directory in the zip. I want to unzip the contents of a zipped directory to a different directory as shown in Linux answer at: How to extract only a specific ...
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177 views

7za create AES256 password protected encrypted zip of a folder

I want to create an AES256 encrypted zip of a folder. I am on Mac and I want to create the zip file and store it in an external drive. I want to AES256 encrypt the file in case I lose the external ...
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Trying to unzip a file inside sub directory getting error: caution: filename not matched

So I have a script that iterates over zip files, lists their content with unzip -l $filename, and looks for matches to pattern (.*)report.xml, in this case yields test0\report.xml But when it tries ...
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How to unzip split zip files with missing parts (on Mac)

I have a file that was sent to me and was in split zip files. I downloaded all of them and tried to open them, but parts were missing. There are 21 total zips, and parts 13-15 are missing. Can this ...
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Getting E_NOTIMPL error when using -v option with 7zip on Debian

Running Debian 9, installed 7-zip 16.02 (64-bit) from debian repo. I'm attempting to create a split 7zip archive, and I receive this error message: 7z a dir1.zip dir1 -v1k 7-Zip [64] 16.02 : ...
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Create zip with directory and add files

By executing the following command you create a deploy.zip in a directory called build, adding every file in the current directory. zip -r build/deploy.zip * So far, so good. Now, I want to add a ...
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Is there a limit to zip-on-zip compression?

I recently made a 10.5GB file of all zeroes, and started zipping and duplicating it, similar to a zip bomb. The compression per-layer was: 1st layer (the 10.5GB file): very high compression (about ...

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