Archiving can refer to the process of archiving files or the process of archiving data. File archiving is combining one or multiple files into one file or container. Data archiving is the process of relocating data that is no longer actively used to a separate storage area for long-term retention.

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Automatically unzip/untar downloaded files?

Is there a way to automatically unzip/untar everything I download? Preferably without installing anything (I already have enough programs running all the time) and something that works with all ...
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1answer
210 views

Is there a way to compress files at different compression levels inside a single 7zip file? [duplicate]

Some files are compressed using their own compression scheme and some aren't. If I try Max compression on an already compressed file, I'll get 1%-2% better compression at most. The amount of time ...
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2answers
79 views

Archive format allowing efficient extraction of specific files.

Is there a file format that handles the following use case... I'd like to create a tar file (or whatever - I'm just using tar here b/c it's a well known file format for containing multiple files) ...
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2answers
90 views

Use all CPUs when creating archives on Linux

Today I wanted to create a backup from a folder on a server with 16 CPUs. I started looking for an option that can utilize my hardware to archive a folder better than how tar does it. Something with ...
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How can I updated an encrypted 7zip archive without losing encryption?

I created a 7zip archive with AES encryption. I included the option to encrypt the filenames. When I updated the file however I am no longer prompted for a password to open the file and can view the ...
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79 views

7zip - Create self-extracting Archive (sfx) with specified Extract path

Hello SuperUser Experts, Thank you for your help in advanced. I am trying to get the 7zip SFX archive to create an executable. I am able to get the executable. But when I run it, it give the ...
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1answer
69 views

Alter .zip double-click action to work with .7zip (Windows 10)

Currently my setup has it so that all file extensions that are supported by 7zip are extracted on double click into a folder pertaining to the name of the archive. This works perfectly on all file ...
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229 views

Possible bug in 7zip - empty folders extract as empty files

I have a directory structure as follows: Main | |--empty_folder | |--folder | |--example.txt I'm zipping it using the .NET ZipFile.CreateFromDirectory method (but I doubt this has anything to ...
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41 views

What can I use to archive files, that anyone would be able to open?

I have files that I need to send to several different international locations. They're confidential files, so I need them to be password protected. Therefore, I was putting the files on a CD and ...
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176 views

Unzip multipart files created from Mac in Windows

This is how I created a multipart archive from Mac; zip -r -s 1g archive.zip long\ folder\ name/ This creates files like archive.zip, archive.z01 and so on. Now I am trying to unzip this archive in ...
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1answer
80 views

Splitting tar archives and uploading them one at a time

I want to backup my systems to split tar archives with a script uploading them one by one. It has to create the split archive and then run a script. The script uploads the part and deletes it. This is ...
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590 views

How can I reliably archive the content of UDF formatted CDs and DVDs

I have been looking into copying the contents of old CDs onto mobile disks in order to save space and preserve the content, since rewritable CDs appear to degrade over time (at least the ones I am ...
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when archiving on DVD, should i make a mirror copy similar to RAID 1?

I would like to archive photos. Hard drive (HD) are unreliable after 3-5 years and are not design for long-term storage. DVDs are much better. From my research i found that TAIYO YUDEN dvd+r is the ...
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4answers
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Compress a 1GB file into 200_MB?

So I just downloaded MySQL for Windows 64bit which 211.9MB but when I extracted it it is now 1.05GB. How did they do it? They archive wasn't damaged at all nor corrupted. Before (Compressed): ...
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616 views

Free command line archivers [closed]

Nowadays, we have a plethora of free arhivers (7-zip, j-zip, winrar <-- okey, that one's not free, ...) But does anyone know of some free command line archivers for popular formats (RAR, ZIP or ...
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tar: extract myfile.tar.gz archive to a directory named myfile

Can it be done with tar? Do I have to write a bash script?
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2answers
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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 ...
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189 views

Archiving old, outdated hard drives

I have a number of old hard drives. I've decided to throw them out. But before I do that, I'd like to keep the contents of hard drives, intact. I tried to use the ISO file format to archive but the ...
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898 views

How do delete *.jpg files from an already existing Archive?

I have at least 40 archive files, 100 MB each, which also includes many .jpg files within. How I can delete the .jpg files from these archives easily? To be more exact, I am looking for a way to ...
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3answers
131 views

Where can I find 7z format adoption?

How widespread is this format? What archivers support it? I would like to replace zip files I create with 7z. But I'm afraid some people will have problems opening them. Edit: The main reason I want ...
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5answers
2k views

How do you archive digital photos and videos?

Considering failure rate of digital media, hard disks/cds/DVDs, what is the best way to archive family photos and videos ? I was thinking of having a couple of hard disks that have the same data. ...
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3answers
174 views

Is it possible to create a RAR from specific selected files inside another RAR?

So I have one RAR and I want to create another RAR from only the (let's say 10K) files inside that compressed archive without uncompressing it. Hope this makes sense and thank you all in advance!
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Storing large amounts of small files into bigger files on Windows

Let's say I have 50 GiB of files that weights around 500 KiB each. My guess is that having, for example, 5 large files of 10 GiB each with the same content archived in them would be better for hard ...
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2answers
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Considerations on an archive HDD

I need to buy a hard drive to store monthly backups of my in-home lab. I need an 8 TB disk and I've been looking at Seagate's Archive HDD's. From what I'm read, these drives are designed to run in ...
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2answers
103 views

How to compress serveral, large, high entropy, but very similar files?

I have several big (as in: bigger than any dictionary, 100s of GBs) files. These files are very high entropy and compress very poorly. However these files are (as far as i can tell) almost completely ...
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1answer
914 views

Are password protected files immune or vulnerable to virus?

Are password protected files immune or vulnerable to virus? I constantly password protect my files using winrar. And I noticed that it raises an alarm whenever I will scan it using my antivirus ...
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952 views

How to unrar the STDIN?

What I have tried: cat archive.rar | unrar x - cat archive.rar | unrar x /dev/stdin cat archive.rar | 7z x - cat archive.rar | 7z x -si cat archive.rar | 7z l -si The unrar doesn't recognise the - ...
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94 views

Unpack large zip file over itself

I want to unpack 20Gb archive, but I don't have another 20-30Gb of HDD free space. Is it possible to unpack this file over itself ? So that zip file will be deleted after unpacking and I will have ...
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496 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 ...
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73 views

How to add durability to an archive?

I have a collection of home videos I want to archive on Amazon Glacier. Since Glacier has a 4 Gb file limit, I need to split some of my 4Gb+ files in to smaller chunks. I figured I should add some ...
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1answer
777 views

Retention Time for Flash Memory

I am considering using flash memory, in the form of SD cards, as a means of complementing my regular DVD backups. The cards are getting reasonably cheap and have an impressive data density. However, ...
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Compare and take some contacts from Address Book Archive

I've got an Address Book Archive (.abbu) file that I backed up a while ago. For some reason some of my contacts got deleted, and I know they're in this backup. I have also changed and added some ...
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Does any version of Windows support uncompressing splitted archives natively?

I mean, are multi-volume .zip archives, or maybe any other kind of archive format, natively supported without any third-party application like 7Zip or WinRAR?
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1answer
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7zip cli kills itself. Why?

I have 1 TB huge directory on debian/ext3. I need to 7zip it and then transfer it to another computer windows/ntfs. I use the following command, but in the end it says Killed. Any idea whats wrong? ...
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2answers
167 views

How to compress multiple files with similar names?

So I've got some 20 000 files that I want to compress and group by following logic: compress every file that have identical characters up to ( also include files that have no ( So the files are ...
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1answer
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How can files in virtual disks be deleted without a complete rewrite of the rest of the virtual disk?

I would think that for a file to be deleted from a virtual disk file, all the data that exists after the deleted file would have to be re-written to the file. this seams to be true for archives like ...
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798 views

Archive software for big files and fast index

I'm currently using tar for archiving some files. Problem is: archives are pretty big, contains many data and tar is very slow when listing and extracting. I often need to extract single files or ...
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2answers
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Good practices of creating redundant archive for long time cloud storage

I want to create digital archive of photos, documents and other imporant stuff to store in the cloud (likely Amazon Glacier). Preferably one year per archive, up to 10 gigabytes each. I want to make ...
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How do I configure Google Chrome to open zip files in file-roller instead of Nautilus?

When I download a .zip file using Google Chrome on Linux, upon clicking it the .zip file opens my Downloads folder in Nautilus, not the .zip file in file-roller. Ironically, Google is mum on the ...
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Create a 7-Zip including only specified folder and excluding certain extensions. No scanning

I'm trying to create a 7-Zip archive that would compress a certain folder (only specified one!) while excluding a certain file extension. I've come up with this: "PATH-TO-7Z.EXE" a archive.7z "C:\...
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1answer
686 views

Archiving large folders

I'd like to create a (compressed) archive of a folder which contains ~350,000 items totalling ~17 GB. Is .tar.gz a sane format to use, or would .zip, .rar, or .7z work better for handling that much ...
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1answer
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is Winrar's “store” mode the same as tar?

The question kind of says it all. When archiving files with Winrar you get the option of different compression modes, one of which is "store". I'm under the impression this does no actual compression ...
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Creating/extracting RAR files on Mac OS X

I would like to be able to create RAR files easily on Snow Leopard with some sort of GUI utility. I know that RARlabs maintains a Mac version of the RAR command line utility, but I don't want to have ...
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2answers
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LamedropXPd-like very simple zipper?

A friend of mine needs to zip a bunch of MP3's on her locked-down XP or Vista PC at work. There are two requirements: Since she doesn't have admin rights, the application should either not require ...
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1answer
2k views

DAR archive GUI utilities for Mac/Windows?

Are there any DAR archive utilities that work for Mac / Windows? All I can find are the command line programs, and the GUI programs for Linux.
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programmatically extract tar.gz in a single step (on windows with 7zip)

PROBLEM: I would like to be able to extract tar.gz files in a single step. This makes my question almost identical to this one: stackoverflow question for tar-gz. My question is almost the same, but ...
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What compressed archive formats can Windows 8 open natively?

I like Windows' built-in handling of ZIP files, and I like to associate compressed files with Windows Explorer whenever possible, rather than a third-party file archiver like 7-zip. Aside from ZIP and ...
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1answer
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seeking a tool creates space-efficient web archives

I am seeking a tool to space-efficiently archive a blog that is changing every day or even two or three times a day. I don't mean that individual blog posts change - not regularly anyway - I just ...
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2answers
516 views

How to get a specified file extracted from a JAR file using a batch file?

I have a test.jar file on windows and I want to use 7-zip to get a certain file from outside of the archive, such as the "com/app/test/FILE.class" file. I only have access to java, 7-zip, and the ...
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1answer
166 views

Is there a twitter client which automatically saves all tweets I see? [closed]

I'd like every tweet about certain topics saved, so tweets with a certain hashtag, word, user, etc. To reiterate, if I see a tweet, I want to save it forever and ever. I'm running Ubuntu Linux.