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

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4
votes
2answers
851 views

Using files that have spaces in their name in pipes

I have folder named play which contains a file damn file (with space). When I use find and pipe the output to tar: find play/ -name 'damn*' | tar cf archive.tar -T - It works perfectly. Why does ...
9
votes
6answers
8k views

tar + rsync + untar. Any speed benefit over just rsync?

I often find myself sending folders with 10K - 100K of files to a remote machine (within the same network on-campus). I was just wondering if there are reasons to believe that, tar + rsync + ...
5
votes
3answers
956 views

Look at the tar log contents without extracting them

tar -tvf file.tar contains log files. Is there anyway to do something like this tar -tvf file.tar | head -1 | awk '{print $NF}' | xargs less {} This would give file not found, but is there a way? ...
4
votes
4answers
550 views

How can I move the entire OS to a different server?

I want to install RhodeCode on a test server at work. However, the internet access is restricted for that server, and RhodeCode has a lot of dependencies (I don't even have Python on that server). So ...
7
votes
5answers
1k views

force copying a corrupted home directory

I have a home directory in a disk that has a lot of corrupted files. I am trying to save most files as possible. I am trying to create a backup of my home directory on an external drive using tar ...
19
votes
5answers
12k 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. ...
16
votes
2answers
9k views

tar cvf or tar -cvf ?

I have learned to use tar without '-' for options, like tar cvfz dir.tar.gz Directory/ but I recently came accross the slightly different tar -czvf syntax (I think the 'f' must be the last option in ...
9
votes
2answers
3k views

How to create a tar.gz file from a folder excluding a folder

How do I exclude a file or folder while creating a tar.gz file with tar command?
1
vote
2answers
6k views

Wait for process to finish before going to the next line in shell script

I have a script I made to create a backup. I need to make sure the backup is ready before it runs the /home/ftp.sh command. How can I do so? I use CentOS 5.6 #!/bin/bash tar -Pcf ...
8
votes
4answers
4k views

Rename directory inside of a tar archive

Is it possible to rename a directory inside of a tar archive? My use case is that I have an externally provided RPM spec file that assumes a tarball with a certain directory structure, and I have an ...
5
votes
3answers
2k views

How store in a variable a file list that includes the backslash when needed?

Main question: I am writing a script to perform a backup. I make a list of files in the following way: LISTOFFILES=$(find ~ \( -name '*.[pP][dD][fF]' -o -name '*.[oO][dD][tT]' \)) The variable ...
1
vote
1answer
3k views

Create target directory when extracting tarball

Is it possible to create a target directory, similar in nature to the mkdir -p switch, where I can define a non-existent target directory within my tar command, and tar will create the directory for ...
2
votes
3answers
2k views

Use find and tar together

I have a directory with many log files, with filenames like acct.20111001 up to acct.20111030. I want to zip them by running: tar -cvjf acct.20111001.bz2 acct.20111001 How can I use find to ...
4
votes
5answers
5k views

tar files only, no directories

I can probably write a shell script to find files only, then pass the list to tar, but I am wondering whether there already is a built-in feature in tar that allows doing just that, in a single ...
2
votes
2answers
856 views

I need to transfer a very large folder over FTP, without creating a file first

I am running an Amazon EC2 instance that is limited in disk space. I have a very large folder that I need to FTP to my local machine, preferably without creating an intermediate tar file, since there ...
5
votes
3answers
15k views

How do I extract with tar to a different directory?

This doesn't work: tar xf /tmp/foo.tar.gz foo/bar tar: foo/bar: Not found in archive It's not obvious to me what would do this beyond extracting it in place and moving the files over.
1
vote
1answer
1k views

Updating tar.gz daily only with changed files [duplicate]

Possible Duplicate: Add/update a file to an existing tar.gz archive? I have some game files I wish to update daily and they create a tar.gz of the folder, but instead of making a full ...
3
votes
1answer
536 views

Copy just permissions and ownership from one tar file to another

I have two tar files which are basically backups of my /data folder on android. The problem is the permissions and ownership of the files inside latest back-up is messed up. However the permissions in ...
2
votes
1answer
506 views

How do I dereference links when extracting from a tar file?

If I have a tar file, bob.tar, which contains real_file and link_to_real_file, in which the latter is a symlink, is there a way to extract the contents of bob.tar so that link_to_real_file will not be ...
5
votes
2answers
6k views

tar with relative paths

I try to create an archive with tar using relative paths. I use the following command: tar czf ~/files/wp/my-page-order.tar.gz -C ~/webapps/zers/wp-content/plugins/ ...
10
votes
5answers
5k views

“tar: unrecognized option --warning” during 'apt-get install'

I just ran apt-get upgrade on my debian 5 vps and I got this error: tar: unrecognized option `--warning=no-timestamp' Now when I try to install other packages e.g: imagemagick I get the same ...
0
votes
1answer
516 views

Proper way to join multi-volume tarballs?

So how should this be done? I have learned that using cat is the preferred way when using split to create multi-volume files, but what about when using tar's own native multi-volume function? Thanks
6
votes
2answers
3k views

Can I automate tar's multi-volume-feature?

Ok, so I've just had a read through this page after a way to improve my current backup solution on my Debian server. Tar seems to be offering a quite nice multi-volume feature, although when I try it ...
3
votes
2answers
4k views

Extract multiple .tar.gz files with a single tar call

I was wondering whether (and, of course, how) it’s possible to tell tar to extract multiple files in a single run. I’m an experienced Unix user for several years and of course I know that you can use ...
3
votes
1answer
2k views

Compress a directory using tar/gz over SSH to local computer?

I'd like to essentially tar/gz a directory on a remote machine and save the file to my local computer without having to connect back into my local machine from the remote one. Is there a way to do ...
5
votes
2answers
482 views

What do these commands (`tar`) actually do? Is there a better way?

I am going over some documentation pertaining to creating a distro repo. However, I cannot understand exactly what these commands perform: # cd /mnt/ # ls centos-1 centos-2 centos-3 # for i in 1 2 ...
8
votes
2answers
2k views

Fastest way combine many files into one (tar czf is too slow)

Currently I'm running tar czf to combine backup files. The files are in a specific directory. But the number of files is growing. Using tzr czf takes too much time (more than 20 minutes and ...
4
votes
2answers
2k views

Tar a folder without .git files?

If I tar a folder that is a git repository, can I do so without including the .git related files? If not, how would I go about doing that via a command?
4
votes
4answers
262 views

Generating sets of files that fit on a given media size for tar -T

Can anyone suggest a script that will take as input the name of one or more directories and a media size, and output lists of files for input to tar using -T (assuming no compression)? ...
6
votes
5answers
9k views

How can i view the contents of a tar.gz file (filenames + filesize)

I cannot use tar -tz as the solaris version I'm using does not accept the -z option. I tried something like gunzip file.tar.gz | tar -tv but that only gives: tar: /dev/rmt/0: No such file or ...
2
votes
2answers
4k views

How to recover a corrupted “tar.gz” file

I suddenly needed to recover an old tar.gz file, but as soon as I execute so: tar -zxvf filename.tar.gz I get this: gzip: stdin: invalid compressed data--format violated tar: Child returned ...
4
votes
2answers
650 views

diff a gzipped tarball against a directory?

Is there a way I can diff a gzipped tarball against an existing directory? I would like to be able to do it without extracting the data from the tarball.
1
vote
2answers
2k views

fastest way of doing a tar.gz from a tree of directories?

I've got a tree of directories with files like this: . |-- 00 | |-- 00 | | |-- 00 | | |-- 01 | | |-- 02 | | |-- 03 | | |-- 04 | | |-- 05 [..] | | |-- 97 | | |-- 98 ...
5
votes
3answers
3k views

How do you verify a tar archive that is already written?

I know that you can do -W when creating an archive, but how do you verify and already-created archive? tvWf says it's not a valid tar archive? $ mkdir tmp $ echo asdkfjh > tmp/a $ echo qweroiu ...
4
votes
1answer
4k 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 ...
6
votes
4answers
2k views

howto inflate AND extract a .tar.bz2 using the 7-zip command line tool

I have a .tar.bz2 file that I want to be decompressed and extracted via the 7-zip commandline tool. So basically I'm looking for the equivalent of tar -xjf foo.tar.bz2 with 7-zip there is only the ...
12
votes
3answers
2k views

Why use superflous dash (-) to pass option flags to tar?

To create a tar file for a directory, the tar command with compress, verbose and file options can be typed thus: $ tar -cvf my.tar my_directory/ But it also works to do it this way: $ tar cvf ...
3
votes
2answers
681 views

Find files with same name but different extensions, send to tgz

I have a large archive of edited images from my camera, each image is actually a pair of files - *.nef & *.xmp. I would like to go through all the folders and then zip these pairs into single tgz ...
7
votes
4answers
3k views

tar extraction depends on filename?

I often download tarballs with wget from sourceforge.net. The downloaded files then are named, e.g ...
18
votes
3answers
31k 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 ...
16
votes
3answers
4k views

How to choose directory name during untarring

Say I have file named ugly_name.tar, which when extracted, becomes ugly_name directory. What command can I use such that the resulting directory name is pretty_name instead?
1
vote
4answers
399 views

Compare the contents of dynamically generated archives

Short question: I have two dynamically generated tar archives (so they have different timestamps), how can I compare them, ignoring any different in time? Backgrounds... I am doing some backup, in ...
1
vote
2answers
236 views

tar through ssh session [duplicate]

Possible Duplicate: What does “-” mean as an argument to a command? When I use this command: tar cf - /tmp | ssh test.com tar xf - What does the '-' mean? And is this the ...
19
votes
5answers
8k views

How can I best copy large numbers of small files over scp?

I have a directory that's got several gigabytes and several thousand small files. I want to copy it over the network with scp more than once. CPU time on the source and destination machines is cheap, ...
9
votes
4answers
5k views

Create tar archive of a directory, except for hidden files?

Here's a newb question. I'm wanting to create a tar archive of a specific directory (with its subdirectories of course). But when I do it, using the tar command, I get a list of files that were ...
9
votes
2answers
856 views

What does “-” mean as an argument to a command?

I found this link on how to open tgz in one step. gzip -dc target.tar.gz | tar xf - What does the '-' mean?
0
votes
4answers
1k views

Copy a directory to external HDD

I'm trying to copy a directory to external HDD- i mounted the device and then typed : cd root tar -cf - * | (cd /mnt ; tar -xpf -) I got this error message: "cowardly refusing to create an empty ...
2
votes
3answers
975 views

untar a directory of *.tgz files using a wildcard

I've got a directory that looks like $ ls Broad_hapmap3_r2_Affy6_cels_excluded.tgz DINGO.tgz GIGAS.tgz index.html IONIC.tgz passing_cels_sample_map.txt ...
0
votes
1answer
123 views

Locate a directory within an archive

I have .tgz archive i'm trying to locate a directory within it to extra how do i search within a .tgz i tried the following below but no luck. tar -tzf archive-9.tgz | grep '161519' | xargs tar -Oxzf ...
11
votes
2answers
699 views

Tar up all PDFs in a directory, retaining directory structure

I'm trying to create a compressed tarball that contains all PDF files that exist in one of my directories. The directory structure needs to be retained. Empty directories are not needed, but I really ...