The tar archive format and/or the command-line utility for working with tar files.

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1answer
39 views

XZ - Cannot allocate memory

If i run this command: XZ_OPT=-9 tar --xz -cvf files/compressed/xz/archive.tar.xz -C files/original/ . Get this message: xz: (stdin): Cannot allocate memory tar: ...
0
votes
1answer
19 views

Set LZMA compression level via tar [duplicate]

How can I set the compression level for this command? tar --lzma -cf files/compressed/lzma/archive.lzma -C files/original/ . With --bzip I just use: BZIP2=-9 tar --bzip2 -cf ...
26
votes
3answers
66k views

Add/update a file to an existing tar.gz archive?

Is there a way to add/update a file in a tar.gz archive? Basically, I have an archive which contains a file at /data/data/com.myapp.backup/./files/settings.txt and I'd like to pull that file from the ...
2
votes
1answer
37 views

Output file generated by tar

tar can be used to gather a whole directory into a single file. I tried with the sample directory sampledir containing just some text files, with no subdirectories. Originally the directory occupies ...
2
votes
1answer
69 views

Why I can't unpack .tar.bz2 or .tar.xz files?

I'm having a problem unpacking files when I try to build from source on my OpenBSD, first I though it was just corrupted files but after it happened to many different programs and from different ...
0
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2answers
61 views

How to determine where a tarball expanded

I ran the following on Redhat linux: tar zxvf jdk-7u79-linux-x64.tar.gz resulting in: jdk1.7.0_79/ jdk1.7.0_79/LICENSE jdk1.7.0_79/release jdk1.7.0_79/jre/ jdk1.7.0_79/jre/LICENSE ...
4
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2answers
45 views

Can I store and work with a directory in compressed form?

I have to work with many large sized directories which are shipped around in the form of tarballs. However, in order to really do any operations these tarballs have to be untarred into directories and ...
0
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3answers
25 views

How to delete files from a directory based on the contents of a gzipped tar file?

Given that I: have a directory that contains over 1000 files have a gzip'ed tar file that contains a subset of those files (x.tgz) What is the single command line (if it is possible) that will ...
1
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1answer
43 views

tar in parallel [duplicate]

I have a directory with several hundred sub-directories. I want to tar and compress each sub-directory and name the resulting file <currentDirName>.tar.bz2. I have done: find ./dir -type f ...
1
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1answer
40 views

tar ignoring “newer” option

How do I get tar to only include files newer than a certain date? I have tried the following, both of which include older and newer files (today is 2015-07-20): tar -cj -N 2015-07-07 directory | tar ...
8
votes
3answers
344 views

Pack file with tar.gz from root directory

I try to pack a .csv file with tar.gz, while being in the root directory. The file myfile.csv is located at /mnt/sdb1/ So the full filename is /mnt/sdb1/myfile.csv I try to save the tar.gz under ...
3
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2answers
29 views

create flat tar archive: ignoring all parents when adding folders

I want to add few folders (recursively) to a new tar archive. All folders should be at the root level of the resulting archive. Is there any way to add all folders without their parents, and without ...
3
votes
2answers
310 views

unable to back-up data from android tablet to laptop using tar!

I'm using tar to back-up data from my android tablet to laptop. But it is showing some error. ravbholua@ravbholua-Aspire-5315:/run/user/ravbholua/gvfs/mtp:host=%5Busb%3A002%2C003%5D/65537/9$ tar -cvf ...
2
votes
1answer
24 views

How to tar-bzip old files in yearly groups

I wish to know a command I can use to grab and archive all files for a year at a time. I am working on a directory that has 72000 files, with files dated from 2007 to current. And I wish to make that ...
1
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2answers
23 views

tar extract hangs on non-existent file

I tried to extract a valid tar gzip file, P.tgz. It hangs infinitely. tar -x P.tgz This archive is of very small size. But it never gets completed. I tried with a non-existent tar archive, ...
3
votes
4answers
304 views

Is it possible to make a .tar.gz file directly from stdin? Or, I need to tar together already gzipped files

I'm going to tell you exactly what I need in order to clarify the cryptic question in the title. I'm currently making scheduled MySQL backups of all my databases with something like: mysqldump ... | ...
9
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3answers
964 views

Is there a way to convert a zip to a tar without extracting it to the filesystem?

Is there a way to convert a zip archive to a tar archive without extracting to a temporary directory first? (and without writing my own implementation of tar or unzip)
0
votes
1answer
59 views

Can I use lzma compression, without using “tar”, on OSX 10.10.3?

I kind of think of OSX as Unix by another name. But, if I need to move this to the Apple forum, please tell me! I can create tar files compressed using lzma as such: $ ls ./DbDumps alpha.dmp ...
1
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2answers
18 views

Include subdirectory from excluded directory in a tar archive

I have the root folder USA and sub-folders California and Texas. Texas is an excluded sub-folder but it has a specific file in it that I'd like to include in the tar backup. Let's call this file ...
4
votes
1answer
54 views

How can I repair a tar file where stderr got mixed with stdout?

I have a tar file that I'm trying to repair. The problem is that tar's stderr got mixed in with its stdout, so the file looks like this: % head android-1435613730.tar tar: removing leading '/' from ...
2
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0answers
28 views

Recover corrupt tarball

I have a corrupt tarball on my hands. My first attempt at recovery went like this: $ tar --ignore-failed-read --ignore-command-error -xf tarball.tar tar: Skipping to next header tar: Archive contains ...
0
votes
2answers
27 views

Tar - exclude all files in sub folder but not nested folders

I need to create a .tgz archive of the following folder pack | rest | vendor (folder) | ----index.php | ----info.log | another (folder) | ---index.php ...
7
votes
3answers
397 views

Can tarring files improve compression?

Can tarring a bunch of files together improve compression with the standard tools, e.g. gzip, bzip2, xz? I've long thought this to be the case but never tested it out. If we have 2 copies of the same ...
2
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1answer
126 views

'Tar' the result of a 'find', preserving the directory structure

I want to tar all the *.txt files that I get as the result of a find command, that exist in a directory having a tree structure like this: Directory_name dir1 file1.pdf file1.txt dir2 ...
1
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1answer
27 views

Performance of `tar -xf` (block size related)

I'm recently working on optimizing the performance of tar -xf, i.e. untar a file. I notice that under default settings, tar -xf calls writes to write 10 KiB output at a time in chunks. However, this ...
1
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0answers
30 views

untar error - Cannot change mode to rwxr-sr-x

I am trying to untar a .gz file , which is stored in the /root folder onto a directory in /mnt/flash2/example I use the following command - tar xzf filename.gz --no-same-owner -C /mnt/flash2/example ...
13
votes
8answers
3k views

Memory problems when compressing and transferring a large number of small files (1TB in total)

I have 5 million files which take up about 1TB of storage space. I need to transfer these files to a third party. What's the best way to do this? I have tried reducing the size using .tar.gz, but ...
3
votes
1answer
47 views

Are tars deduplicatable at the block level?

Quite simply, when a tar file is made on disk, would the extents be deduplicatable with extents inside and/or outside of the tar? I am asking in the theoretical sense, so if the extents of data are ...
3
votes
5answers
145 views

View a file in a tar archive without extracting it

I want to view the content of the tarred file without extracting it, Scenario: I have a.tar and inside there is a file called ./x/y.txt. I want to view the content of y.txt without actually ...
15
votes
2answers
10k views

Prevent showing time stamp message when running “tar xzf”

When running tar xzf, how to prevent this message (Prevent showing time stamp message): tar: node: time stamp 2011-06-07 02:02:30 is 8309 s in the future tar: user/Node: time stamp 2011-06-07 ...
0
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0answers
42 views

I can fix/repair small damaged tar.gz files using fixgz but it doesn't work on bigger files

The title tells it. I have some damaged .tar.gz files, most of them are pretty small (smaller than 1-2gb) but 4 of them are bigger and fixgz cant fix them, when i run fixgz for those big files, it ...
0
votes
1answer
61 views

tar with -C not working [duplicate]

I am trying to un-tar into a different directory using this tar xvf BACKUP.tar -C test But I am getting the following errors File -C not present in the archive. File test not present in the ...
0
votes
1answer
50 views

tar exclude files *.zip

Why don't *.zip patterns work in tar : tar cfjv backup.tar.bz2 --exclude mydir/files/*.zip mydir Is there another syntax?
0
votes
1answer
61 views

Extract files from a corrupted .gz file

I tried to compress a directory using tar -zcvf output.gz input_dir. I suppose I should have used a .tgz extension for compressing. How do I untar output.gz? I tried both tar zxvf output.gz, which ...
3
votes
1answer
102 views

Make Tar Incremental Backups into One Backup?

Well, I know this question is quite strange. I have done a lot of incremental backups. Now the total file size gets too large, because there are a lot of duplicate files with similar contents, and ...
45
votes
6answers
30k views

How to XZ a directory with TAR using maximum compression?

So I need to compress a directory with max compression. How can I do it with xz? I mean I will need tar too because I can't compress a directory with only xz. Is there a oneliner to produce e.g. ...
3
votes
2answers
33 views

Including process output in tar file

I have a simple bash script to generate a compressed tar file and upload it to an external server for backup purposes. In addition to files on the server, I'd like to include dumps of a few mysql ...
1
vote
2answers
38 views

Pack installed system in tar.gz file

I have arch linux installed, with partition scheme like this: /dev/mapper/lvm-root -> / /dev/mapper/lvm-home -> /home /dev/mapper/lvm-opt -> /opt /dev/mapper/lvm-pkg -> ...
5
votes
3answers
2k views

tar list files only

Fun fact: If you use Archive Manager and extract a .tar.gz so that you have "Keep directory structure" unticked, you will get a tarbomb. tar -ztf lists all the files and directories in a tar file. Is ...
25
votes
6answers
38k views

tar: Removing leading `/' from member names

root@server # tar fcz bkup.tar.gz /home/foo/ tar: Removing leading `/' from member names How can I solve this problem and keep the / on file names ?
2
votes
3answers
46 views

tar compresses folder, but creates nested structure

I have the following folders on a linux machine ./myFolder ./tmp ./packages ./zips compress.sh I run tar -czf ./zips/someFile.tar.gz ./tmp/someFolder from compress.sh. The folder is ...
18
votes
5answers
10k views

Is there a parallel file archiver (like tar)?

Is there something out there for parallel archiving of files? Tar is great, but I don't use tape archives, and it's more important to me that the archiving happens quickly (with compression like ...
8
votes
5answers
1k views

Does gzip add integrity/crc check to a .tar?

I run commands: tar -cf myArchive.tar myDirectory/ gzip myArchive.tar then I copy the file over a lot of unreliable mediums, and later I unpack it using: tar -xzf myArchive.tar.gz The fact that ...
0
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2answers
93 views

how to untar file in linux red hat?

I am compiling linux red hat stable kernel on red hat linux and the error which I am facing is as below
1
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1answer
31 views

How to specify a common parent folder to tar files from different sources into

Here is the current command I'm running: tar --directory=/Users/joe/images -czvf images.tgz dir1/image1.jpg dir2/image2.jpg As you can see, this is using /Users/joe/images as the root directory, and ...
0
votes
1answer
16 views

How do I test for existence of a file(s) within a certain directory before making a Tar of that directory?

How do I test for existence of a file(s) within a certain directory before making a Tar of that directory? Would it possibly look like this: if [ -f /home/backup ]; then tar cf name.tar; fi
8
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1answer
7k views

How to check/test .tar.bz archives?

I've been using tar with its "--use-compress-prog=pbzip2" function to archive my files then compress them with pbzip2 to get an "*.tar.bz" archive. Afterwards I checked the resulting file with ...
4
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2answers
4k views

Why doesn't tar ask before overwriting existing files?

I lost a couple hundred lines of a Vim plugin I wrote and continue back up every so often because I extracted a tar file containing an older version. I decided not to use source control management ...
7
votes
4answers
1k views

Faster alternative to ArchiveMount?

At the moment I am using ArchiveMount to mount a 123,000 kb archive that contains more then 3 million files inside. So far it has been mounting for 5+ hours and still isn't finished. Is there a ...
6
votes
2answers
3k views

What's the difference between tar.gz and tar.Z?

The downloads on this page, e.g. of NetCDF C/C++/Fortran 4.1.3, show tar.Z and tar.gz formats. The tar.Z doesn't even have a configure file in it. What is it used for?