Compression is the process in which a file or folder's size is reduced by using an algorithm to encode the same information using fewer bits.

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44 views

Set 7z compression level using GUI in Ubuntu

Archive Manager, or file-roller, doesn't seem to have the option to set the compression level for 7z files. However, the windows client 7-zip has an option to do so using GUI - On Ubuntu/Linux, ...
0
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1answer
28 views

Mounted btrfs will [not] compress?

I have a partition formated to btrfs and im willing to store there stuff that I don't use that often but which I need fast access from time to time (some dumps of my PS2 games for now) because I have ...
-1
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1answer
78 views

Compressing a folder (tar) without its containing directory in the foldername

I am trying to compress a folder with tar command. When i trying to compress it , it works fine the problem is with the file name. source path : /data/file/ destination path : ...
0
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2answers
23 views

Lossless Compression using rsync

When using the -z mode to compress data when running rsync, is the compression lossless? sudo rsync -az /path_to/A /path_to/B How can one ensure that any compression would be lossless?
0
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0answers
13 views

Installing deprecated tool pack

I'd like to install the pack tool to solely employ Huffman coding to a file, for academic purposes. It is suggested to install liballegro4.2-dev, but I doubt it provides the same tool. Looking for ...
0
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2answers
108 views

Linux/Ubuntu native (not Wine) alternative to DVD-Shrink, that can compress a DVD image to a smaller size to fit on a writeable DVD?

An alternative to DVDShrink would be a program able to shrink a DVD movie to a smaller dimension that would fit a standard 4.7 dvd while optionally keeping the dvd-movies structure, menus etc. (that ...
1
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2answers
48 views

How can I compress multiple pairs of files into separate archives by name?

I've got a couple dozen sets of Audacity project folders and .aup project files whose names are very close, i.e. 10-13-14-data and 10-13-14.aup. I'd like to compress all of these files automatically ...
-1
votes
1answer
248 views

How To Zip An Archive Without Including Parent Directory

Help Please I want to zip many folders and their directory tree is like so V- something.txt folder folder g.jpg h.jar Now Whenever i try to zip it it ends creating a zip archive with the v ...
0
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1answer
73 views

How to compress syslog-ng's network link, now that zlib is disabled in openssl?

In our servers infrastructure, for logging, we use a client/server setup, using syslog-ng, and stunnel as a mean of compression at the network level, through zlib at the SSL layer (syslog-ng doesn't ...
0
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0answers
48 views

CRC error when trying to open archive with gzip/tar

When I run the command tar xvf ns-allinone-2.28.tar.gz it gives the following error: ns-allinone-2.28/tclcl-1.16/tkAppInit.cc gzip: stdin: invalid compressed data--crc error tar: Child returned ...
0
votes
3answers
57 views

can't compress whole file with tar?

I'm not an expert with tar (xz) but I have a video (FLV) and it's size 95MB I would like to compress it and I was using this command XZ_OPT=-9 tar -Jcvf myfile.tar.xz 1.flv (I got this from a ...
0
votes
2answers
399 views

How to convert the iso file into rar or zip or tar?

Is there anyway to extract iso or convert that to zip or rar or tar file? actually I have a big iso file on my remote server so I just want a file from it not all of that, unfortunately I have not ...
1
vote
1answer
952 views

7z “ultra” settings for zip format

7z "ultra" settings for .7z format are: 7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on What are the "ultra" settings for .zip format (using 7z)?
0
votes
1answer
195 views

7z “is not supported archive” while updating an archive

While updating an archive we are getting this error: $ 7za u -pPasswored -mhe=on -r -m0=lzma -mx=9 -mfb=64 -md=32m '-x!temp' filename.7z /home/software Error: XXXXXXX.7z is not supported archive ...
0
votes
0answers
40 views

What can 7zip do that archive manager cannot?

7zip is very popular in the Ubuntu Software Centre. But Ubuntu comes with its own Archive Manager, which appears to support many formats, both compression and decompression. What can 7zip do that ...
0
votes
1answer
1k views

btrfs for deduplication and compression at the same time?

I'm thinking about using btrfs functions for both deduplicate and compress my storage... My question is: is it efficient? I mean, does it deduplicate AND compress at the same time efficiently?! I'm ...
1
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0answers
62 views

snzip via apt-get?

The snzip is a data compressor, based on the Google Snappy library. I've found and installed the library itself via apt-get: sudo apt-get install libsnappy-dev but it doesn't include the command ...
0
votes
1answer
62 views

compressed block device

I wanted to experiment with combining bcache and a compressed block device on a hdd and seeing if this will speedup the boot time. Are there any means of compressing a block device at the block level? ...
4
votes
5answers
1k views

What is the difference between different “compression” systems?

I've always used TAR and ZIP for compression, but recently I have heard about the *.Z compression algorithm. This brought up a question for me: With all of these compression systems, which one is ...
0
votes
2answers
84 views

Command/App to convert video files [duplicate]

Anyone know how to batch convert multiple video files into smaller sizes?
2
votes
1answer
63 views

Compressing many folders

I have a directory containing plenty of folders as well as compressed files. I need to compress the folders that are not already so (tar -cvzf ...) but have no experience in sh scripts. Can anyone ...
0
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0answers
25 views

App is not running after tarball file was expanded [duplicate]

Since the latest Blender is not found in the Ubuntu Software Centre I downloaded it directly from their web site. However, now double-clicking on the Blender app won't do a thing :( I expanded the ...
0
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0answers
21 views

Encoding and syncing music folder

I need to synchronize my local music folder to an external ftp server. Normally I would something like FreeFileSync, but I need the music files to be encoded before syncing. Are there any options?
0
votes
1answer
227 views

How to create a .bz2 file from a directory without using tar?

I've been searching on the internet and used Archiver to make .bz2 files. My archiving tool only makes tar.bz2 and my game host doesn't read that. It reads .bz2 files only. Is there a way to make a ...
2
votes
1answer
104 views

Rsync-ing highly compressible files - am I missing something here?

Today I was using rsync over a slow internet connection to transfer a video file - uncompressed avi, 60 seconds duration, 360MB in size. Basically it contained 1500 frames of the same image, hence it ...
0
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2answers
118 views

How do i backup my videos folder

Is there a way that I can compress my videos folder to a very small size that can fit in an 8 GB USB-drive? The folder is about 32 GB and has all our family videos in it. I tried backing up but the ...
0
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0answers
35 views

How to routinely back up files on Ubuntu Server 12.XX? [duplicate]

I would like to know how I can setup a automated backup for Ubuntu server to either make a compressed backup of a group of files or upload them to a remote server. I don't need a whole system backup ...
1
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1answer
58 views

How do I add convert wav into flac to the context menu?

I would like to right click on an wav-audio file in Nautilus or Dolphin and convert it to a FLAC-audio file that way with the highest possible loss less compression.
0
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2answers
2k views

Missing GUI application for 7-Zip?

I installed 7-Zip from Software Center, but where is the GUI application? Original question asked by a user: ich habe 7Zip aus dem Softwarecentrum installiert, finde aber kein Symbol zum ...
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2answers
47 views

Can you have debs without compression?

I'm in the middle of doing an upgrade on a really slow machine. It's an Intel Atom that's a few years old. It's perfect for watching video and using XBMC but it really honks at decompressing hundreds ...
0
votes
1answer
906 views

Make the daily log rotate run on exact time

I have Ubuntu 12.04.2 LTS server. My daily log rotations which are listed under /etc/logrotate.d/ are executed at the morning around 7:00 am, but it is not on exact time, each day it changed on range ...
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2answers
10k views

Compressing folders with password via command line

I would like to know whether it is possible to do the following via CLI. I have a Folder F which contains several sub folders and some files. I want to compress folder F into .zip file with the ...
12
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3answers
34k views

how to extract tar.7z files from command line? [duplicate]

Is there a way to extract files of tar.7z format using command line tools in Ubuntu?
3
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1answer
173 views

Screenshot tool with integrated optipng or pngcrush

This is a followup question of how do I get maximal compressed screenshots? Is there a screenshot tool that has optipng or pngcrush already included to minimize the filesizes of the png ...
0
votes
1answer
643 views

How do I add archive folder to dolphin in Xubuntu?

When I right-click on a folder in dolphin there is no option to compress that folder. How can I add this to the context-menu of a folder like: create archive from folder --> zip,rar,7z,...
1
vote
1answer
2k views

Xfce - GUI for File Compression?

If I remember correctly, using Nautilus in Gnome, I could simply right-click on a file & select "compress". Now I am using Thunar in Xfce & I can't find how to simply compress files... I ...
0
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2answers
71 views

Compression or Decompression

My question is that if I have two files suppose : file_1.gz and file_2.gz then can I compress these to files into another compressed file ex file_1+2.gz (Just a name.) The catch is that I dont ...
0
votes
1answer
58 views

Best container/compressor for nesting

Is there a format, such as 7zip, zip, tar.gz etc that that 'glues' pre-compressed folders together quickly? At the moment, it appears that archiving pre-compressed files/folders has very little ...
0
votes
3answers
215 views

Which archive format does not read/extract whole archive when extracting single file?

As the title states, I have a few large archives (currently in .7z and .tar.gz format) stored on a remote location which I access via sshfs. I often find myself needing to extract one or two files ...
1
vote
1answer
834 views

Unrar fails when accents are present in filenames

I have the rar package installed. Double clicking on .rar files opens the file in Archive manager. It works fine when folders or files use only characters with no accentuation, but if there is some ...
7
votes
2answers
5k views

How do I create tar.7z file from the command line?

I would like to zip up my homework from last year. How do I tar and zip the whole folder from command line Ubuntu (I don't have GUI).
4
votes
2answers
295 views

how do I get maximal compressed screenshots?

I'd like to compress my screenshots as much as possible before I send them via email. The best compression ratio I only got with some work on each screenshot: first I took the screenshot with ...
2
votes
1answer
720 views

Extract an .mzp on Ubuntu

As above, is there any way to perform an extraction of a .mzp file on Ubuntu? The interwebs have nothing for me :p.
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0answers
575 views

Unrar works really slow compared to Winrar?

Is there a particular reason why Unrar operations are so slow comparing to Winrar on Windows. I managed to extract a file faster in Virtualbox (Windows 7 guest with Winrar).
2
votes
1answer
3k views

Gzip and rename (remove .gz extension) all files except images and PDFs?

I am able to gzip every file in a directory (mydirectory) using the command: gzip --suffix .gz --recursive mydirectory But... I don't want the images (.ico, .jpg, .png, .gif) and PDFs (.pdf) ...
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4answers
5k views

Why are the .zip files of compressed .jpegs about the same size?

I am a new user of Linux OS's and I am trying Ubuntu 12.10 right in this days. The overall impression is quite positive, but there are some features that make it still complicated for use from most ...
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votes
2answers
1k views

Should I install zip or use gzip?

I have downloaded some .zip files. I wish to decompress them (I have unzip), modify them, and compress them again (into separate compressed files, one decompressed file per compressed file). I have no ...
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5answers
9k views

Multi-Core Compression tools

What compression tools are available in Ubuntu that can benefit from a multi-core CPU.
2
votes
1answer
2k views

How to read/mount a .gz.dd image file?

I have a partition file (a .gz.dd file) that I need to read the files from. I'm new to Linux and I don't know how I can read/mount .dd files in Ubuntu. Would you guys tell me the procedure of reading ...
2
votes
1answer
4k views

Simple Scan - Changing the default output File Type to PDF and improving Compression?

Is there a way to change the default output file type in the 'Simple Scan' software provided with Ubuntu 12.10 to be a PDF rather than a JPEG? And is it possible to modify the compression settings on ...