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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491 views

Compress folders older than x days

In /opt/abc I have a path where a new folder gets created daily. In that folder a series of files gets created. I would like to run a script every Sunday at 02:00 and compress each folder which is ...
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3answers
151 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 ...
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2answers
271 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 ...
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2answers
208 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 ...
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2answers
2k views

compressing a list of files by using tar

what I am trying to do is to compress a list of files using tar. So what I am doing is sudo tar -pcf filename.tgz `cat filename.list` so if there is a directory on the list like this ...
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1answer
238 views

Cannot open AR archive file!

I have compressed couple of files and folders (mostly photos) using 'Archive Manager' on Ubuntu 14.04. During compression I've selected file type as AR from the drop-down selector. Now when I'm ...
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1answer
104 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.
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1answer
30 views

What does “Compression Method : null(0)” mean in Client Hello?

As a task of my assignment, I used wireshark to capture packets. Now in Client Hello message, I saw compression method:null(0). Now I am confused what is that mean? Does that mean no compression is ...
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1answer
120 views

Linux: compressing pdf with GS is very slow?

I am compressing large PDF files (+10 MB in size) with GS using the following snippet: gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH ...
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1answer
197 views

Can't unzip compressed files - Ubuntu 15.04

So, here's what I'm faced with atm: I am unable to unzip any type of compressed files - 7z, tar, bz, zip, rar, etc. I've tried in front-ends (nautilus and PCMan) and terminal (unzip, tar, etc) and ...
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1answer
202 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 ...
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1answer
2k 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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0answers
171 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 ...
1
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0answers
815 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).
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0answers
37 views

Will mounting a btrfs volume with compress=no decompress already compressed data?

If not, how may the data be decompressed? Will defrag process decompress files?
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0answers
38 views

Display all images using next arrow from a compressed file(zip or rar )

Is there a way to display an image from compressed file(zip or rar file) and then press next arrow to display the next image in that compressed file (zip or rar file). In both cases(where we have a ...
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0answers
32 views

Can't record in high quality

I finally gave up on SimpleScreenRecorder for many reasons, and I'm now trying to use OBS. It seems like it works much better, but I can't figure out how to configure it correctly. There are very few ...
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0answers
222 views

How to uncompress vmlinuz

I have extracted a 14.04 iso file. How would I decompress vmlinuz and then compress it back?
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0answers
15 views

opening ar archive file

I'm trying to decompress that *.AR file using 'Archive Manager', it give me error msg Could anyone please help me to decompress the AR file properly? Thanks. ar file link