GNU tar creates and manipulates archives which are actually collections of many other files; the program provides users with an organized and systematic method for controlling a large amount of data.

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1answer
438 views

resumable tar over ssh

I'd like to use tar cf - | ssh user@hostname tar xf - to copy a very large set of files. The only problem is that it will be over a very flakey VPN link. Is it possible to somehow set up a resumable ...
0
votes
4answers
267 views

Tar dereference only 1 level

I use the following pseudo-script to create a TAR of my installed software mkdir tmp ln -s /path/to/app1/bin tmp/app1 ln -s /and/path/going/to/the-app-2 tmp/app2 tar -c --dereference -...
0
votes
1answer
57 views

What would be the outcome of tar and untar a constantly changing folder via ssh

I have used this command on a big-sized (TB),constant changing directory with sub-folders and files. $ tar c dir/* |gzip - | ssh user@host 'cd /dir/ && tar xz' What would be the outcome at ...
3
votes
1answer
6k views

Absolute recursive tar without parent directories?

I have a directory structure that looks something like this: /var/www/website/index.php /var/www/website/home.php /var/www/website/whatever.text /var/www/website/.htaccess /var/www/website/images/ /...
11
votes
4answers
15k views

Determine if file is in the process of being written upon?

I need to deploy an automated process (via 1 min cron script) that looks for tar files in a specific directory. If a tar file is found, it is untarred to the appropriate location and then the tar file ...
0
votes
1answer
587 views

Backing up file moves with rsync + tar

I have a mirroring system in place with rsync and it works well. However, moving a file causes it to be transferred again in its entirety. Given what I know about the rsync algorithm's rolling ...
4
votes
5answers
5k views

Cannot set target directory when extracting an archive using tar

I'm trying to extract a tar archive to a specific directory. I've tried using -C flag but it doesn't work as expected. Here is the commandline I'm using tar xvf myarchive.tar -C mydirectory/ This ...
1
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3answers
402 views

tar over ssh to IPv6 host

I want to tar to a remote host using the remote host's IPv6 address. I can ssh and scp to the host but GNU tar does not accept the IPv6 address. I tried: tar -cjvf root@2001:DB8::1234:5678:/backup....
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votes
1answer
45 views

Changing tar parameters

I'd like to change the command I'm actualy using to put files in a tar archive in order to achieve this: 1) Remove directories tree from the archive (actually the .tar.gz file mantains the tree of ...
1
vote
2answers
192 views

Run command to untar file in timestamped folder?

I have a .tar file that is transferred to our server every night by one of our client management systems. The file is a compressed .sql file which I need to uncompress and dump into our database. The ...
0
votes
1answer
506 views

How to unpack specific directory from /home backup packed with pigz+tar+gzip

Normally I'm extracting my copies with: pigz -dc backup2_week1_system.tar.gz | tar xzvf - Now I want to unpack specific directory from /home/user for example admin
3
votes
3answers
2k views

tar gzip slowing down server

I have a backup script that: compress some files generate md5 copy the compressed file to another server. the other server finishes comparing MD5 (to find copy errors). Here it's the core script: ...
0
votes
3answers
6k views

Combine two or more compressed files

I have 2 gz files those I need to merge into one -- that is to say I want to combine two .gz files into one such that when I extract the combined file I get a single file containing the concatenation ...
0
votes
2answers
463 views

copy files with folders [closed]

The following scp is working as expected. scp /home/admin/* root@ec2-50-112-212-73:/ But I need a command that will create the required folder structure on destination server if it does not already ...
4
votes
4answers
636 views

Ultrium 3 tape drive shoe-shining, 3Mb/s: and it's not the cable

I have a HP 960 Ultrium 3 tape drive. Since I got it, (second hand, £90) I've been experiencing shoe-shining. Writing with tar in Linux, I average about 3Mb/s write speed. I've tried replacing both ...
2
votes
1answer
3k views

linux/solaris when to use tar or gtar

is it possible to know when need to use tar or gtar according to tar file for example I have some tar file as sometarfile.tar how to know if need to use tar or gtar command ? is it possible ...
-1
votes
5answers
583 views

Transer a large number of file between two servers [duplicate]

Possible Duplicate: Quickest way to transfer 55GB of images to new server I am migrating from one server to another. I want to transfer the thousands of file from one server to the other. ...
3
votes
3answers
11k views

Can't extract tar file on Linux server

In 7-zip file manager I created a tar file (with many subdirectories and files inside). I uploaded this file to the Debian server but can't extract: tar -xvfz files.tar gzip: stdin: not in gzip ...
5
votes
3answers
1k views

Linux tar archive without parent structure

I'm trying to modify a certain tar.gz archive I have. When I go to create the tar, it retains the parent directory structure, as a tarball should. However, is there a way to simply create a tar ...
2
votes
1answer
967 views

sudoers not working for tar command

I want to disable the requirement of sudo or running as root for a bash script that does backups with tar. I added this line to my sudoers file username ALL=NOPASSWD: /bin/tar However after I ...
3
votes
1answer
4k views

tar Exiting with failure…?

i'm untaring with this command tar -pxvzf filename.tar.gz an everything seems to be going fine but, it unexpectedly exits with the error below. Is there a reason why I'm receive this error and / or ...
8
votes
1answer
3k views

tar padding with zeros

When performing a tar on a bz2 compressed file I am encountering the following error, tar: dump.sql: File shrank by 19573448400 bytes; padding with zeros Can anyone point what might be causing this ...
-1
votes
4answers
344 views

extracting files from tar

tar -xvf company_raw_2012-03-16.tgz --directory=/root/test --strip-components=4 I am using the following tar option to remove the leading directories and it is working as expected. --strip-...
1
vote
2answers
826 views

How to untar a single file from an archive with randomly generated directory names?

I'm trying write a script that will download a tarball from github and extract a single file from it. However the top level directory inside the tarball has some random characters in it, which I ...
-4
votes
3answers
355 views

Any reason for «tar: Can't specify both -x and -t»? [closed]

Question is due curiosity mostly… — it's kinda strange and awkward limitation considering tar's inability to list content w/o reading the whole (sometimes huge) file.
0
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1answer
260 views

tar from tape never finds directory I want

I'm a newbie when it comes to working with tape backups. I'm trying to extract a directory from a tape archive, and not getting much success. The directory on the tape is of the format /foo1/foo2/...
1
vote
1answer
413 views

Make rsync working with compressed target or tar creating no increment files

I need to make a backup on my external hard drive. I looked both at rsync and incremental tar. The problem is that I want my backup to be compressed. With rsync I can only compress the data transfer, ...
2
votes
1answer
87 views

Linux - Splitting a backup into two steps

I create a tarball using tar zcf arhive.tar.gz dir/ and this works ok. Now I wanted to split this into two simple archives, one only for images, the other -- for everything else. It seems that there'...
0
votes
2answers
691 views

How can I make monthly backups (with dated file names) using Cron on Debian?

I'm having trouble adding the date to the backup file's filename. Here's the Cron command (for testing): */2 * * * tar -zcf /var/backups/www-(back tick)date +%Y%m%d(back tick).tgz /var/www/ It should ...
1
vote
1answer
1k views

Install Old Version of PHP on Centos 6

I am trying to install php 5.2.17 on a CentoOS machine. Having problems as I have only used yum in the past. I have the file downloaded and unpacked...not clear on how I need to ./configure before ...
10
votes
2answers
13k views

Compress every file in a directory into its own compressed file

How do I compress every file in a directory into its own tar whilst preserving the name for each file? i.e. file1.out file2.out --> file1.out.tar.gz file2.out.tar.gz
3
votes
2answers
626 views

tar specific number of file

I have a directory with 27K files, I would like to tar them into multiple INDEPENDENT tar files, each will have 5000 files and the last one, will obviously have 2K (27K is not dividable by 5). What ...
2
votes
1answer
168 views

How to remove a certain folder when tar zipping?

I want to remove a folder when I'm creating a tar.gz file as it's for a backup and it takes too much space and is not required I am using the following command; tar -cvzf /home/backups/$STAMP-Earth....
0
votes
1answer
141 views

Use tar to exclude one directory (but not another) that matches a pattern

I'm working on doing a pretty straightforward tar for a site, but there's a wrinkle. Here's the file structure of the site: ... files/ images/ images/visitors/ ... logs/ ... visitors/...
3
votes
4answers
2k views

Linux - Bare Metal Restore from a Tar file

I make a backup of my Debian webserver on a daily basis. A full backup on Sunday, and differentials each other day of the week. The backup is made with Tar. I backup the whole system into the Tar ...
3
votes
4answers
8k views

How to list the files on a tape with tar?

On a HP-UX OS I have a backup on a magnetic tape created from the SAM. Everywhere I read the instructions to list-verify the contents of the tape is to use the TAR program: #tar tvf /dev/rmt/[...
8
votes
2answers
3k views

How to tarball a directory without carrying over /path/to/folder?

Example command: $ tar -cvjf destination.tar.bz2 /path/to/folder/source I'd like the final destination.tar.bz2, when extracted, to not include a /path/to/folder/ file directory. It seems inefficient ...
25
votes
2answers
21k views

tar - Remove leading directory components on extraction

How can you extract only the target dir and not the complete dir tree? compress tar cf /var/www/site.tar /var/www_bak/site extract tar xf /var/www/site.tar -C /tmp This will produce: /tmp/var/...
1
vote
2answers
479 views

tar to tape and file with encryption

I am trying to encrypt our tape backups, using tar and openssl but also write to a local file, so far I have : tar --total -czp ./tmp ./home | tee /tmp/Archive.tar.gz | tee > /dev/nst0 I'm not ...
3
votes
2answers
1k views

Use wildcard in tar with -T option

I have a backup script that has this syntax "tar -czvf backup.tar.gz -T filelist" In this filelist, I'm listing folder to backup, but I also need to backup every file that has a given extension like "*...
2
votes
3answers
1k views

encrypt tape files with openssl and tar

I am trying to add encryption to my current tape backup scripts by piping the output through openssl, at the moment I have : tar -czpvf /dev/nst0 /home /otherdir so adding openssl gives this : tar ...
3
votes
1answer
683 views

Does tarring up small files into one big tar file before writing them to tape increase the level of data loss when an error occurs?

I've been looking at our backups recently and noticed that the tape throughput is a lot lower when writing lots of small files, so was thinking of tarring those small files up into one big tar file ...
0
votes
3answers
2k views

zip does not work for big files

What is the best way to compress a file if it is more than 4 GB in size? I am using the following for last several months. mysqldump --all-databases | zip > mybackup.zip Today I am got an error:...
1
vote
1answer
544 views

Why does tar -c dir | pigz > /mnt/nfs/dir.tgz use network, then cpu in cycles instead of both at once (with one bottlenecking)

I want to transfer a multi-terabyte directory to an nfs mounted directory most efficiently over a 1Gbit network (probably the limiting factor) 3 options - tar and compress in place, then copy copy, ...
4
votes
2answers
7k views

How to exclude files from TAR archive using regular expressions?

I have a simple question, yet I can't find or solve the answer. I want to make a tar archive, but I want to exclude some files from it using regular expression. Example of the file to exclude is this:...
3
votes
1answer
154 views

verify integrity of encrypted tar

I'm using tar along with openssl to create encrypted tar archives of some large directories (about 30GB). What is the possibility of corruption in this process, and how would I verify that the ...
7
votes
3answers
7k views

How to convert a TAR file into an ISO file

I have a Linux TAR file that I would like to convert directly into an ISO. Is there a way to do this, preferably, without having to extract the contents of the file first? This would be similar to ...
1
vote
1answer
45 views

Tar: create new archive from filtered archive

I need to create a new tar archive from the filtered output of the original. I thought something like this might work: tar xvpf myarchive.tar --exclude=foo* | tar cvpf mynewarchive.tar but that ...
2
votes
3answers
363 views

Bandwidth-friendly backup strategy using tar?

We've used tar to backup and compress (gzip) selected directories on our file server with very good results until recently. Each and every one of our backups are stored on mirrored (RAID) harddrives ...
3
votes
1answer
275 views

Is there a quick way to get the very last file in a large TAR?

Let's assume I have a several gigabyte tar file, but I also happen to know that the very last file written to the archive is something important that I need. Since tar files are appended sequentially,...