`gzip` (or GNU zip) is a file format and corresponding utility for compressing files using the DEFLATE algorithm. The usual extension is `.gz`.

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Bash command to compress folder(s) with a password

How can I compress two folders into archive file (zip, gzip or something like that) with a password on the files? For example I have folder structure: rootDir dir1 dir2 dir3 dir4 I need bash ...
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1answer
391 views

How to zgrep by file pattern and timestamp?

I have a list of several thousand gzip (*.gz) files that I'd like to zgrep through, but I only want to run it on files with a last-modified-timestamp on or after yesterday (11/22/2012) and that ...
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2answers
98 views

Extract a section of a tgz file

I have a 28.5 GB .tgz file which was created on the command line of a Linux computer, compressing one folder and all its many many subfolders. I now want to extract a single sub-sub folder from that ...
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Estimate compressed file size in tar.gz

I've got a set of .tar.gz files, which are duplicity backup files (either full backups or incremental ones). I'd like to compute which directories take the most space on backups. This will most ...
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1answer
306 views

Enabling GZIP compression for Firefox RSS reader

I'm trying to view an RSS feed in Firefox, but am getting the following message. Your RSS reader does not support (gzip) compression. Is it possible to enable GZIP compression in the Firefox RSS ...
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3answers
697 views

Control gzip compression rates while archiving files with tar?

I have a script which periodically backs up a directory using the command "tar -czvf [name] [directory]" but my problem is that the script has recently been putting a lot of stress on the server ...
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1k views

Tell if a .gz file is really gzipped

What is a nice command-line trick to tell if a .gz file is really gzipped, as opposed to being a non-Gzip file just named that way?
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1answer
1k views

General Compressibility Of Various File Formats [closed]

Has anyone come across list of which file formats generally compress well (in general algorithms)? Generally, text files .txt compress well, and media-files (.mp3, .avi, etc) do not compress well. ...
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294 views

Is it possible to recover partial compressed files?

Of the most popular compression methods (7z, RAR, Zip, GZip) is there any of them that allows to retrieve the uncompressed data from a partial file? Imagine there is only one compressed file, and it ...
0
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1answer
190 views

Looking for a gtk equivalent of ark

Does there exist a GTK equivalent (or improvement) of the Linux archiving tool known as Ark? If so, where might it be found; and if not, how well-received might be a new project which acts as a ...
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2answers
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Howto pipe: cp | tar | gzip without creating intermediary files?

Can anyone tell me if it's possible to pipe | this without having to create a physical file anywhere between A and B.tar.gz? This is what I'm trying to do: File A Rename A to B Tar B.tar gzip -9 ...
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1answer
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Zip/gzip compression ratio much less in Linux than in Windows

I have a bunch of very huge files located on a Linux machine that I would like to compress and save some space. I have tried using the tar/gzip combination and I have noticed that the compression ...
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445 views

How do I compress a directory?

Hey guys I was wondering how would I gzip 7z tar or just regular zip a directory like this /var/Backups/Tones regular gzip won't do it because Tones is a directory and this site ss64.com/bash doesn't ...
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1answer
857 views

Why my multiparted .tar unpacs just partly? (missing files)

I have 25 .tar files like: filename.tar.001 - filename.tar.025 When I want to unpack them with cat myarchive.tar.* | tar xvf - it does, but missing files: whole .tar is 1,2 GB, but unpacked files ...
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2answers
4k views

gzip for 64-bit Windows

Does anyone know any version of Gzip which supports 64-bit Windows? I could not find anything.
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How to gzip a directory, transfer via scp, and decompress in one command?

I frequently transfer large directories over scp and it would be sweet if I could somehow compress the directory, send it, and decompress it all in one. Is something like this possible?
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1answer
102 views

Guess compressability of a large file

I have a large file (~20 GB) and I want to quickly make an (approximate) estimate of how well it can compress. I want an program which can provide an immediate guess at the compressed filesize, and ...
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1answer
3k views

.tar file to excel conversion [closed]

Hi i was requested to convert a file by one of my client.I need to convert a .tar file to a ms excel. I gave the below steps to them but some of the fields in the content are missing. Please suggest ...
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1answer
143 views

Difference between caching & gzip for static pages

I have implemented all caching methods such as, memcache, diskcache, and also tried GZIP. Is there any source I can refer to which explains the difference between them. I tried memcache it is really ...
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Fastest GZIP utility

I'm looking for the fastest gzip (or zip) utility. I have a LVM volume which 95% exists out of blank 0's, so compressing that is very easy. I'm looking for the most fastest solution, and don't really ...
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1answer
1k views

How to gzip more than one file using cygwin [duplicate]

Possible Duplicate: How to gzip multiple files into one gz file? I am trying to gzip a bunch of files in the same folder using cgywin on windows 7. When I try gzip *.* I can't seem to ...
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5answers
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SVN directly to tar

Is there a way to directly tar the latest version of an SVN folder without the SVN hidden files? I would like to create a tar archive without the SVN files. I know you can get the latest with the SVN ...
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2answers
199 views

Modern command line file compression utilities

I am frequently moving large files around from server to server. UNIXes comes with standard gzip and bzip2 compressors. However, what open options there exist beyond these, especially ones utilizing ...
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1answer
568 views

Decompressing these .gz files gives strange/unexpected results, can you get it working?

I have a collection of mailing list archive files all gzip'd, they're in a nested directory structure that starts with what appears to be a blank folder/jargon name. The files are here: ...
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1answer
403 views

Weird GZip / Disk space issue

I'm working on a server which is using PCI Compliant partitioning rules, which means that each of the following directories has its own partition: /, /var, /boot, /usr, /tmp and /home. The server is ...
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How can I evaluate the best choice of archive format for compressing files?

In general, I've observed the following: Linux-y files or tools use bzip2 or gzip for distributing archives Windows-y files or tools use ZIP for distributing archives Many people use 7-Zip for ...
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1answer
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gzip - Extracting without deleting zip file

Right now I am running an extract from a .gz file using the Windows gzip.exe. However when I decompress the file, it kills the .gz file and leaves me with the extract file. For example if I run this ...
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531 views

Gnuplotting gzipped files

I would like to use a command like plot 'datafile.gz' u 1:2 in gnuplot for a data file that is gzipped. Of course gnuplot does see that the file is gzipped and unzip it for me. Is there a way to ...
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2answers
865 views

Is it more efficient to rsync uncompressed text data or the same data gzipped?

Rsync only copies over the changed parts of a file. So if I have a large data dump, for example a SQL database in text format, and I want to copy it to my local machine using as little bandwidth as ...
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Split a large .gz file and gzip each of split file?

I have a large text.gz file (2GB) and I want to split it by line. I tried to use: zcat text.gz | split -l1000000 However this generated a huge file (around 92GB before I terminated it) and put too ...
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2answers
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How to delete a tar file after I gzip it?

I am creating a tar file and then I am gzipping the tar file. So I am getting a .tgz file and now I want to delete the previous tar file. ${gzipExe} -f --rsyncable $tarname.TAR --stdout >> ...
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970 views

Excluding Path While Compressing with TAR/GZ

I am compressing list of files like this: tar cvzf mycompress.tar.gz /dir1/dir2/file1.txt /dir1/dir2/file2.txt However when I uncompressed them the directory /dir1/dir2/ is still preserved. How to ...
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617 views

Merge tar files in Windows Server

In my server(windows server) I have 3 tar files. (file.tar, file.tar-2, file.tar-3). I want to merge those files. (Those are generated by some server tool). So I am looking for a tool to merge ...
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2answers
7k views

How can I compress a large file into smaller parts?

I'm looking for a way to compress a large file (~10GB) into several files that wont exceed 150MB each. Any thoughts?
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3answers
898 views

Linux Command line: recursively overwriting every file with a gzipped version?

______________ myFolder What can I replace with _____ to recursively gzip every file starting at myFolder and have the gzip be overwrite the file (rename the gzip file to the original filename)?
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GREP and TAR all files/directories matching X

I would like to find and gzip/tarball contents of all the folders matching wordpress in my directory, but I am having trouble trying to get the command to work, I thought it was something like find ...
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1answer
87 views

Which is better: using flags, or pipes?

As with many things in the *nix world, there is more than one way to generate .tar.gz files. Typically, I use the following: tar zcf /path/to/dir.tar.gz /path/to/dir However, I have seen the ...
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How to GZIP all the files or a list of files from some path?

I know that gzip compress a file, but I would want to know. How to compress a list of files, each file in their own GZIP file ? I need to use the list of a folder: ls log.2011 And for each file ...
2
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1answer
104 views

My internet connection doesn't send the Accept-Encoding header

Whatever computer is connected to that network (router is Netgear DGN2200) and whatever program sends a http request, servers never get the Accept-Encoding header from me. For example, if I go here: ...
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What is the fastest compression method for a large number of files?

I need to compress a directory with around 350,000 fairly small files that amount to about 100GB total. I am using OSX and am currently using the standard "Compress" tool that converts this directory ...
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2answers
1k views

can gunzip work on file without a suffix?

Is there a way to gunzip a file that isn't ending with a .zip even though I know for a fact the file is indeed a zip?
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1answer
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Critical gzip mistake (HELP!) - how to undo 'gzip -r ./'

So I was hoping to make a gzipped backup of my entire directory stucture, but I was very stupid and issued the command 'gzip -r ./' hoping to add all files and folders to a single gzip archive. This ...
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2answers
219 views

What type of data is compressed more effectively by bzip2 than gzip/zlib?

I'm comparing compression functions, and I'm surprised by what I'm seing. Maybe I'm doing something wrong, but everything I've tested has been more compressed by gzip than bzip2! I was under the ...
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4answers
27k views

Unexpected end of file. Gzip compressed file

I am going crazy with a gzip file. I can decompress the file in Windows using WinRAR but it is impossible on any UNIX operating system. the file seems to be ok. If I do file the_name_of_the_file.gz ...
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4answers
7k views

gzip without tar? Why are they used together?

Why are tar and gzip almost always used together, and not just gzip? Is there any advantage to that method?
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3k views

uncompress gzipped encrypted file

I have got a backfile with extension .tar.gz.enc. After fooling around I found out that it is encrypted gzipped tarball. Now I want know how to decrypt it.
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1answer
982 views

With which command should I open .raw.gz files?

I have a bunch of .raw.gz files which are data files streamed from twitter with JSON interface. I am wondering which command should I use on my Mac OSX to open (unzip) these files? I have tried tar, ...
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Firefox, saving all images from every page so that they are retrievable?

I'm having a bit of trouble finding a way to do this, I know that firefox saves images to a cache file but it is in a gzip archive file that I am unable to unzip (just gives error when I try, I'm ...
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1answer
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How to list the contents of a zip along w/ file sizes and compression ratio via cmd line

How do I list the contents of a zip along w/ file sizes and compression ratio (or packed size) on osx w/ command line tools?
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Help on writing Linux script to backup and ftp files to another server

I am using MySQL as the database system for my application on a Linux system. Every week I update the system and take backups (mysqldump) of the databases changed (2 databases). I then .tar.gz them ...