Questions tagged [7-zip]

7-Zip is an open source file compression and archiving application

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22 views

Archive a directory to stdout with encrypting file names from Windows command line

I have a 1 TB directory that needs to be uploaded as a single encrypted file. There is no free space on a disk. I already have an app to upload a file from stdin but I don't know how to create the ...
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158 views

How do I search in multiple 7-Zip archives?

7z command line has a very fast search feature allowing to find files contained in a compressed folder. This is the syntax: 7z l mycompressedfile.7z fileiwant.txt -r It works also on multiple ...
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31 views

Check password of large 7zip file quickly

I have a large 7zip file which I forgot the password to. I can narrow down the password possibilities to a word list with about 2000 passwords. Only problem is, that it takes ages for each password ...
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31 views

Batch File command to unlock password protected archives

I'm trying to write a batch file that will unarchive .7z files...extracting them to their original folder. The problem I'm having is adding the password to the code. Can someone help? Thanks! Here is ...
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How to confirm that 7zip line command matches output from GUI

I use the 7zip GUI very often and I am trying to automate some backup archive generation. Here is the configuration that I can read on the GUI: Archive Format : 7z Compression Level : Ultra ...
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45 views

7zip archive won't decrypt with the password used for encryption

I'm trying to write a PowerShell script that will use 7zip to compress files with encryption individually. $Password = Read-Host -Prompt 'Enter Password:' dir *.txt | ForEach-Object -Parallel { & ...
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66 views

How do i unzip files with 7z and do not replace files that have the same name but different hash?

How can i tell 7z to extract all the files in the directory, tell it to do not replace files that have the same name but different hash? preferably tell it to extract the files and rename them to ...
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No <Options> submenu under < Tools > in 7-zip under linux (deepin os)

I am running deepin os. I cannot see Options submenu, under Tools. Tools only have Benchmark submenu. I want to change the default editor. I don't mind changing it in configuration file, but I cannot ...
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11 views

How can I open the image file generated by Bitlocker Repair Tool

I used the following Command: repair-bde E: D:\recover.img -rp xxxx-xxxxx-xxxxxx-xxxxx And I do successfully recovered my encrypted image according to cmd success message. And My recover.img file is ...
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27 views

Chrome silently ignoring single click download of 7z files

When I press a link to .7z files on Chrome, it is silently getting ignored and the file is not downloaded. There is no pop-up message or any indication of why it's not downloading the file, just ...
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7Zip - Command Line : Exclude folder(s) by folder starting name and ending name (wildcard pattern)

I had a look at previous answers 7Zip - Command Line : Exclude folder(s) by wildcard pattern? But I couldn't find a way to exclude folder by their startname or endname Example: Exclude folder "...
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Do office programms make local copy of encrypted files (e.g. 7zip encrypted)?

I have a folder with different files .docx, .xlsx etc. I encrypted the folder on a usb stick with 7zip with password. When I put the usb in another computer and open a file of this "vault", ...
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75 views

Using 7zip to extract a CAB file of drivers. Where do you extract them?

I have a Dell E5450 and I have downloaded the Windows 10 driver pack cab file from Dell. I'd like to use 7zip to extract these driver files to their proper location on the windows computer only using ...
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43 views

My updater script for portable apps works. But not for VSCode

Edit: Fixed version below. I have a script that lets me update any app that is distributed in portable format, and it works. With the exception of VSCode. With VSCode, after running the script, I'm ...
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88 views

recompressing .gz and .bz2 files to attain the same hash/checksum (mod timestamps?)

i want to duplicate the entire contents of wikimedia's dumps, monthly, and upload them to amazon glacier and/or tape backup and/or a third backup medium that can survive corporation collapse/...
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116 views

Are 7z-included checksums enough to verify backup integrity?

I recently started using uncompressed, encrypted 7z archives for backups. I chose 7z because it has easy to use desktop apps for Windows and Linux, in case I need to recover the data quickly. I store ...
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57 views

Auto rename extracting file with custom prefix during overwrite conflict using 7Zip

I am trying to extract a .zip archive file which has files with same names, and later I want to manually check the conflicted files. I have tried extracting it using 7Zip command line switch -aou, ...
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How to create a batch file for 7Zip to create individual folder

How to create a batch file for 7Zip to create individual folder I have some study folder with files. eg- Source folder = E:\Learning\Group\Material\ Folder Name = Tamil Files=TLesson1.mp4, TLesson2....
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25 views

Create multi volume archive of standalone zips

Is there a way using 7-Zip to create multi-volume archives (totaling many gigabytes) with each archive as a standalone zip with no files spanning multiple volumes??? Scenario. User has to upload 16 gb ...
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54 views

7zip password protected zip - SHOW the password that i type

wondered if, when i unzip a pasword protected file and it says "enter the password, it will not be echoed" if i could see either what i type or paste (echoed!) OR a ***** to show that what i'...
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106 views

7z: Multithreaded Decompression

What is needed to compress an archive so that it uses multithreading when being decompressed? I have read that that only compression protocol that can use multi-threading to decompress an archive is ...
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36 views

Is there a reason 7zip won't accept the correct password for my encrypted archive?

I have some passwords saved in a .odf (Libre Office) file. The file is password protected through Libre Office. On top of that I used 7zip to archive and encrypt the file with 7zip's built in AES-256 ...
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1answer
53 views

Unzip and 7z with password, without temporary files

Every now and then, I receive a download link for a 6 GB .zip data archive that I'd like to: download unzip recompress with 7z, with a password I'd like to avoid using temporary files for each ...
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20 views

7z Command Line Extraction Issue

I am getting a "Can not open the file as archive" error when extracting files with wildcards via command line. Any ideas? The End goal is to extract all rar files in download directory ...
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28 views

Can I start extracting a 7z file while downloading?

I have a very big 7z file that I am downloading. Extracting these kind of files also take a lot of time for me. Is it possible to start extracting them while still downloading? Like you can do with ...
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225 views

Is it safe to use 7-Zip from a data corruption standpoint to archive 500GB of videos?

Would it be okay to use 7-Zip to archive my almost 500GB videos in compression level store format only to my portable external hard drive. I just want to put it in one file with password for my future ...
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55 views

Extract all rar files in a folder and subfolders using 7zip [closed]

I have the following folder structure in Windows: D:\TV Shows | \----Show | | | \----S01 | | | | | \----E01 | | | | | | | \----E01.rar (contains E01.mkv) | | ...
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How to create a Windows context menuitem for all file extensions EXCEPT two?

I want to create a Windows context menuitem that gets displayed for all files that do not have the file extension .zip or .7z. I'm quite comfortable manually editing the Windows registry, if needed. ...
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22 views

Extract udf (latest version) blu-ray iso?

How can I extract udf blu-ray iso with fast speed? It seems like rar and 7z can't read the file format. I know that you can mount it and then copy the files, but it's terribly slow for me (10MB/s on a ...
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19 views

How to change password of multiple ZIP archive files at once?

I have 50 password protected ZIP compressed archive files. By design, all the files have the same password. I now want to change the password for all those ZIP files to a different password (again, ...
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160 views

Making 7zip outputting files to a list instead of a 7z archive

I would like to know if this is possible, to make the files a 7zip command line would compress ( "7z a ..." or "7z u ..."), go into a text list instead of an actual archive. Like a ...
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85 views

Is there any way to recover data from a corrupt 7z multi-volume archive?

I have a large 7z archive which was split into ~1000 100mb volumes. One of the volumes (.004) was not completely copied and is only 55/100mb in size. All other volumes are intact, I've reviewed https:/...
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7-zip command-line to recursively extract archives in sub-directories, and output them into those sub-directories

I've got hundreds sub-directories, with each sub-directory having 1 or more archives in them. I want to recursively extract every archive in every sub-directory, with the extracted files ouputted in ...
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8 views

crc mismatch at the end but the extractor does'nt show the corrupted part

i have a big file, more than 150 gigabytes. its about 70 parts of 2 gigabyte *.rar files. when i extract them, winrar or 7-zip does'nt show any corrupted file but at the end, it shows crc mismatch. ...
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18 views

Extract zip files and recompress them into 7zip files [duplicate]

I'd like my zip files to be extracted, then recompressed into 7zip files. Example: Before: $ ls 001.zip 002.zip 003.zip --snip-- 997.zip 998.zip 999.zip After: $ ls 001.7z 002.7z 003.7z --snip-- 997....
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181 views

Loop extract zip files and handle nested zips

I have a command that will extract all zip files within a directory. The issue is you may have nested zip containers (zip inside a zip). What I would like it to do is go through one run, and then do a ...
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143 views

7zip: how to convert Linux SFX archives to Windows SFX?

I need to compress some files in archives that can be opened by everyone using a Windows PC without 7zip installed. I thought of running 7z a -t7z -m0=lzma2 -mx=9 -mfb=64 -md=64m -ms=on -sfx -pXXXXXX &...
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52 views

Unable to delete or rename file [duplicate]

For those who went through most possible solutions online, I hope this save you from headaches. So a while ago, I had a PDF file that I saved from Google Chrome that had an excessively long name. ...
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111 views

How do I create seperate 7z files for each selected file/directory in 7zip?

Long time lurker, first time poster. I've looked around this site, I've googled, I've experimented. And, while I'm very, very close to where I want to go, there's one last hurdle I can't seem to get ...
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40 views

Compress all files in a folder with 7-zip using batch file [closed]

I want to schedule a background task that will compress all files in a certain folder using 7-zip. I'd like to accomplish this using a batch file with the following settings:
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What are the correct tags to use in a .bat file for 7-zip to achieve the same settings as the GUI?

Source for current problem solving: Sevenip.osdn.jp but I cant get anything except -t7z -mx9 -m0=LZMA2 -mmt=1 -md=1024m -v10m to work. I've been adapting Enteleform's code from this answer to a ...
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2answers
84 views

7zip create archive and omit any symlinks on windows

I want to make a backup, but without the symlinks. 7zip has symlinks option for tar and wim. "Store symbolic links" checked or unchecked to omit them? Edit: I'm using "add to archive&...
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76 views

What's the point of using more CPU threads than the number of CPU virtual cores when compressing with 7-Zip on Microsoft Windows?

What's the point of using more CPU threads than the number of CPU virtual cores when compressing with 7-Zip on Microsoft Windows? E.g. in the following screenshot, I have 6 CPU physical cores, 12 CPU ...
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739 views

Renaming a .obb file to .zip then unzipping and rezipping with 7-zip produces a file of different size

I transferred a .obb file from my Android phone to my Windows PC, renamed the file extension to .zip and unzipped it with 7-zip. This produced a folder with image, audio, and other files. When I ...
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1answer
180 views

7Zip CLI multipart extraction issue. Proceeding part overwrites existing

I am looking for a way to use 7zip to decompress multipart achives via CLI. So far I have the below which extracts as expected but instead of joining the parts, overwrites the existing contents with ...
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How does 7-Zip determine tar file order on Windows?

For unix-like systems, tar uses readdir(). What does 7-Zip use on Windows to determine tar file order?
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169 views

Using Total Commander and 7-zip-zstd, I cannot copy directly from a packed .7z file

I use Total Commander with https://github.com/mcmilk/7-Zip-zstd , I've got the plugins and the TotalCMD .dll's installed. According to the github I should be able to decompress packed .7z files. But ...
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344 views

Merge two 7zip archive into one archive

The usual approach to merge two archives to unpack both archives and repackage. Is there a way to merge two or multiple 7zip archives into one archive?
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380 views

Convert RAR to 7zip

To convert a RAR to 7zip archive the typical approach is to unpack the RAR archive and the repackage as 7zip. Without unpacking and repacking is there a way to convert a RAR archive to 7zip format?
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133 views

Switch for 7zip CLI (7za) to set modified time of extracted files to now?

Right now my server service is calling 7za to extract archive files like this: 7za x "file" -o"output folder" There's problem due to a server compliance Windows cleaning service ...

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