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

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2k views

What does the number after 7-zip's -m switch mean?

7-zip has a command line switch to set the compression method, -m followed by a number, e.g. -m0=LZMA. What does the number (0 in the example) mean? Different numbers produce slightly different ...
0
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1answer
836 views

How to create a locked (read-only) 7zip archive?

You can create a "locked" RAR archive using WinRar such that the files can't be modified or deleted, and they become readonly without using a password. Is it also possible with 7z format? It is ...
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1answer
642 views

zip sub folders individually

can anyone help me make a batch file for my problem. i have multiple folders that i want to compress individually. root folder 1 file 1 file 2 ...
4
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1answer
7k views

7-zip - how to use command line to include/exclude large list of files

I'm (trying) to develop a program to operate the 7-zip console program (7z.exe) via ShellExecute() and passing it a computer-generated list of files. Now what I want to do is this : I want to pass ...
2
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4answers
342 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
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1answer
589 views

Why doesn't 7-zip appear in the contextual menu in Windows Explorer for MATLAB's .mat files after installing MS Office?

I use MATLAB and after installing MS Office 7-zip doesn't appear any more in the contextual menu when trying to zip some .mat files: http://youtu.be/uJvSC4oCes8. How can I solve it?
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1answer
767 views

7Zip and forfiles - Invalid argument/option - 'a'

I need some help with a script I'm working on. It seems I'm missing something. The command line is as follows: forfiles /P "F:\source_path\" /M *.bak /D -1 /C ""D:\7za\7za a -tzip -mx7 -v40m ...
21
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6answers
44k views

Missing Explorer menu options for 7-Zip

Just reinstalling 7-Zip (v.9.2) to a new system, and I cannot find the context-menu option in Explorer. In the 7-Zip options there is no plugins tab (as detailed in the documentation) to change this ...
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2answers
3k views

7-zip command line -p switch not working according to help page

I want to be able to automate the encryption of the file type .pcapng in a windows batch script. My current problem is that I get an error when extracting the encrypted file saying something along the ...
0
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3answers
632 views

How to store complete path using 7z on linux

I am looking for a simple way to backup files that have changed in the last 24 hours and creating a daily 7zip file ( I don't need permssion or users just files ). Using the following command I can ...
0
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1answer
465 views

How to create ZIPs with the content of every folder [duplicate]

I have several folders and I need to compress the content of each folder in a separate ZIP file. However, every ZIP should only contain the content of each folder and not the folder itself. The ...
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2answers
362 views

7zip is incompatible with tar format created by git archive

% git archive --format tar master > archive.tar % file archive.tar archive.tar: POSIX tar archive % tar cf a.tar archive.tar % file a.tar a.tar: POSIX tar archive (GNU) 7zip cannot unpack tar ...
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1answer
2k views

7zip - compress the contents of each folder in a directory

I basically want to compress each file in each folder, delete the original file and leave the folder uncompressed. I don't want to compress the whole folder, only the contents in it. That, with 7zip ...
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1answer
535 views

find files with spaces modified in last 60 days and tar.gz in files no bigger then 4gb with date

I maintain a file server. I need to backup files that have changed in a period of time. First i compressed up everything to 4gb files and backed up to dvd. But 7z that I was using 7z a -t7z ...
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0answers
244 views

How can I create a self-extracting executable from the windows command line that accepts the default install directory as a parameter?

I have tried several different methods including winzip command line and 7zip, but I cannot find a method that will let me create a self-extracting executable that will extract to a specific directory ...
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4answers
9k views

7z file manager crashed and left temp files behind

So I did a drag&drop extraction from 7z (windows), which creates temporary files (this was on purpose, as I was extracting to a network share.) Unfortunately, 7z crashed during this process and ...
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2answers
7k views

How do I add a file to a zipped file when using 7-zip?

I used to be able to drag & drop and add a file to a zipped folder. Now I cant when using 7-zip. I upgraded to a new computer with windows 8 (nightmare) that has 7-zip and I would either like to ...
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4answers
6k 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. ...
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3answers
2k views

Extract files with umlaut in 7zip file created under windows to Linux

I want to extract a large backup of my hard drive compressed with 7zip under Windows to my Debian Wheezy installation. I'm using the following command line: 7z x -pmypasswordhere file.7z If there's ...
0
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0answers
168 views

command line extracting especified file from 7z file

I would like to extract a specific file from a 7z file, but that filename exist twice on different directories. How can I choose one of them? I tried using compressed path but I received an error ...
0
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1answer
213 views

7zip archive is too large when using -x

I am compressing a dir into a zip, and use several -x switches. 7z a -tzip -x!.\test1.gadget\.git\* -x!.\test1.gadget\.gitignore test1.zip .\test1.gadget\* 7-Zip [64] 9.22 beta Copyright (c) ...
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1answer
944 views

7z getting an event not found error in command line

I am using 7zip on my centos machine and ziping a file via command line. This is my syntax 7za a -t7z backup.7z public_html\ -mx0 -xr!restricted_area What i'm expecting with this syntax is to ...
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0answers
275 views

How I can identify the packer which was used for creation of some crapware installer bundles (setup.exe)

A lot of so called "freeware" bundle installers contains one or more unwanted disgusting crapware components like the evil ask toolbar or other similar hexadecimal stuff. Is it possible to identify ...
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2answers
933 views

7zip filename encoding problems

I have problems extracting files from 7zip archive with non-ascii symbols in filenames. I have identical versions of 7z on two computers, which differ only by the system locale. If I compress on one ...
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1answer
78 views

Specify archive-to directory in 7z

I'm running 7z a from the command line and wish to specify the directory which the archive .7z file is to be in. I don't see, from the man page, a way to do this (and -o and -w don't do it). Is there ...
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2answers
2k views

How to open big tar.gz file

I created a big tar.gz file, following this guide. It is a daily backup file. My computer has 3 GB of RAM and is running Windows 7. My biggest archive is 183 GB, containing pictures and documents. ...
0
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1answer
598 views

Is it possible to recursively list zip file contents with 7 zip without extracting

Similar to this question I have a very large zip file which contains other zip files, folders, and files. I want to use 7-zip to extract a list of file names from it, recursing into subfolders and zip ...
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5answers
1k views

Automatically extracting text files via commandline and combining them into a single text file

In-Depth Explanation of Problem: I'm trying to automate a process on my computer and having some difficulty. Each day, I'm emailed a zip file that contains a txt file. I have a script in place that ...
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1answer
234 views

How to archive using the shell extension and still exclude files with 7zip?

How can I exclude files from archiving in 7-zip's "Add to Archive" dialogue? I know how to do this from the command line, but it doesn't seem possible from the "Add to Archive" dialogue. I thought ...
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1answer
523 views

How do I use 7-zip AND from SPECIFIC folder backup only the config.xml files

I have a Jenkins Server which I want to Backup using 7-zip. I want to backup the full C:\JENKINS with all the sub directories with only one exception. The exception is that from the JOBS folder I ...
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1answer
2k views

how to “preserve internal directory structure” when unzipping on windows?

I'm tring to build boost, in instructions I've read When you extract the library from its zip file, you must preserve its internal directory structure (for example by using the -d option when ...
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1answer
253 views

7zip update split archive [duplicate]

I am using the gui So I have a split archive in format archive.7z.01 archive.7z.02 archive.7z.03 I want to update them to match the folder being compressed but I get the error "The file exists"
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3answers
10k views

7-Zip not working from the DOS prompt or command line?

I have "7-Zip" installed and it works from Windows, but not from the DOS prompt or commandLine: 7z e max_logs_can_messages.tgz Yields: '7z' is not recognized as an internal or external command, ...
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3answers
3k views

Can I get the black and white 7zip filetype icons back?

I've been using 7-zip for a long time. Any archive that 7-zip recognizes was given a black and white [7z] icon. I just switched from Win7 32 bit to Win7 64 bit, and when I reinstalled 7-zip all of ...
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2answers
4k views

How to zip multiple folders in 7zip?

I have a folder, lets say, MAIN. Inside this folder, there are many folders(say f1,f2,f2...) which has subfolders and files in them. Now I need to zip these folders(f1,f2,f3...) and their contents ...
21
votes
3answers
9k views

How do you register the 7-Zip GUI program with the .7z extension in Windows?

For whatever reason, the 64-bit Windows Installer doesn't seem to register the .7z file extension with the 7-Zip GUI (or with anything, as far as I can tell). How do I go about doing it. A simple ...
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votes
3answers
2k views

Automatically extract and rename extracted file according to archive's name

I have a bunch of zip files in a folder. Each zip file has a file in it named exp_1.txt. I would like to unzip each zip file and rename the extracted file from each zip file to what the zip file was ...
2
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1answer
3k views

Create an archieve with current date and time in file name using 7z command line

Today I lost my whole Far Cry 3 save game suddenly. So now I want to backup it's save game folder automatically on a certain period of time using windows task scheduling. I want to include date and ...
0
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1answer
819 views

How do I zip a folder with 7-zip but not subfolders of that folder?

For instance, if I wanted to zip everything in My Documents, but not subfolders in My Documents, and I also did not know the name of each subfolder.
2
votes
3answers
17k views

Extracting a Zip File with Japanese Filenames?

I'm trying to extract files from a zip file on Windows 7. The filenames are in Japanese, but they just look like éñé▀é─é±é─ü[é╓é┐éσèGòùé▄é╟é⌐üÖâ}âMâJâZâbâg20110423. They include a 3D model file and ...
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2answers
3k views

Windows 7 Explorer Preview Pane for zip files

I was wondering if there is a possibility to add .zip file to the explorer preview pane (Windows 7 64 Bit). For example if a folder contains a .zip file i would like to see the content of the .zip ...
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3answers
49k views

How can I install 7zip so I can run it from Terminal on OS X

I would like to be able to run 7zip from the command line on Mac. Does anyone have instructions on how to set this up?
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votes
4answers
25k views

7-zip commandline How To archive with subdirectories? Or, how to KEEP folder structure while archiving

I have a bunch of files like this: C:\G\G1\35antique-shop.mp3 C:\G\G2\35antique-shop.mp3 C:\G\G1\09saguri.mp3 C:\G\G2\09saguri.mp3 edit1: I just wanna know how to KEEP folder structure while ...
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1answer
461 views

How to use 7z with variables inside a linux script?

For example: 7za e -y $file_name -o$dest_directory This works fine, when run directly from command line, but within the script it gives this error: could not find archive (No archive by that ...
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2answers
6k views

Incremental backup with 7zip

I have googled and searched, but can't find the command that 7zip command line utility uses for making incremental backups. So can someone please share the command ? Thanks btw I found this link: ...
6
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1answer
4k views

7-zip files on Linux with AES-256 encryption

I have a requirement to zip up some files in Linux with 7zip using AES-256 encryption. The end user will be opening in Windows with 7zip. I'm using the following command: 7za a myfile.zip test.txt ...
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1answer
425 views

7-zip not in Explorer++ context menu

I use both 7-zip and Explorer++ quite a bit, but I can't seem to get Explorer++ to show the context menu items for 7-zip, like the windows explorer does? Am I missing something? In windows explorer ...
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0answers
625 views

7zip command line - extract all files in a folder except *.exe

I am using the command: 7z.exe x -y -o<dir> <archive dir> * -aoa -r to extract all archives that are located in the archive directory. I am running into a problem where exe files that ...
3
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2answers
5k views

7zip command line options for more information when synchronizing

In the 7zip command line options, is there some argument that can make 7z output the files ignored/deleted from the archive too? (files ignored by the option -uq0) Example call: "C:\Program ...
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1answer
476 views

7-zip alternative for mac os (that allows editing within the zip)

I've been using 7-zip in Windows, and looking for its alternative for Mac OS. Various tools I tried able to open/archive/extract, but I can't update it within the tool itself, like dragging and drop ...