Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Failed to use find-tar-gzip together Post 302764901 by bakunin on Friday 1st of February 2013 05:57:28 AM
Old 02-01-2013
DGPickett is correct: either "tar" writes to a file (then the pipe is empty) or to <stdout>, but not both. There are some other things with your code you might want to change:

First, obviously, you shouldn't use backticks any more. Use "$(...)" instead.

Second: "gzip" is - because of the way it works - a single-threaded program. If the amount of data you compress is huge it might take a very long time. Even if your system has several processors you will always use only one. If you want to overcome this you will have to distribute the files to back up over as many "tar"s as there are processors (sort them by size and use a round-robin scheme to balance the sizes) and then gzip each tar. This way you put all system processors to use.

I hope this helps.

bakunin
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Combine tar and gzip together?

Hello I just wandering, instead to doing "tar cvf foo.tar * " and then gzip foo.tar , can't it be combined to one command ? (1 Reply)
Discussion started by: umen
1 Replies

2. UNIX for Dummies Questions & Answers

TAR and GZIP help

Hi, There are 700 .pdf files in a certain directory on the server and I need to TAR them first and then compress them using GZIP to free up the space. The combined size of the .pdf files is 3gb. However, there is only 1gb of free space on the server. So as you can see when I try to TAR these... (3 Replies)
Discussion started by: VandeMatram
3 Replies

3. UNIX for Advanced & Expert Users

tar/gzip/gz...which one to use?

P0251WLADC.svm_wl1 > /svm_wl1/billing/data/server/archive/ALLEVT $ du -k FEB2006 22050224 FEB2006 As you can see,i have a folder called "FEB2006" which is around 22 GB. i guess zip or compress wont work...( i don know how do we compress a folder) i wished to use ""tar" ( i suppose... (5 Replies)
Discussion started by: abhijeetkul
5 Replies

4. UNIX for Dummies Questions & Answers

tar and gzip

Hi, I would like to have a combined gzip and tar that will compress and create multiple output tar.gz files. I want to have multiple files output because i cannot create an archive because there is no more space on my harddisk. I cannot transfer it locally because of slow connection. I want to... (3 Replies)
Discussion started by: tungaw2004
3 Replies

5. Shell Programming and Scripting

tar + gzip + split together

Hi All I need guidance on this requirement . We have a directory structure which has data of approx 100 GB We need to tar the structure then zip it and create different files of not more than 10 GB A separate tar file then a .gz should not be created , on the fly a script is needed... (7 Replies)
Discussion started by: aamir1234
7 Replies

6. UNIX for Dummies Questions & Answers

tar -cvf test.tar `find . -mtime -1 -type f` only tar 1 file

Hi all, 4 files are returned when i issue 'find . -mtime -1 -type f -ls'. ./ora_475244.aud ./ora_671958.aud ./ora_934052.aud ./ora_934050.aud However, when I issued the below command: tar -cvf test.tar `find . -mtime -1 -type f`, the tar file only contains the 1st file -... (2 Replies)
Discussion started by: ahSher
2 Replies

7. Shell Programming and Scripting

find + tar + gzip + uunecode/email --> in one command?

How to search for all files with matching strings --> find + tar + gzip + uunecode/email them in one command? I am sure there is a right way to pass list of files to tar, then compress tar file. Then send that as attachment using uuencode in one command.. Can we do that!? (3 Replies)
Discussion started by: kchinnam
3 Replies

8. Shell Programming and Scripting

tar and gzip files

Hi Guys, I am using RHEL5 and Solaris 9 & 10. I want to tar and gzip my files then remove them after a successful tar command... Lets say I have files with extension .arc then I want to tar and gzip these files. After successful tar command I want to remove all these files (i.e .arc). ... (3 Replies)
Discussion started by: Phuti
3 Replies

9. UNIX for Beginners Questions & Answers

Need help ASAP - FIND - TAR - GZIP

Hi, I need to combined in 1 line the execution below : find * -type f -mtime -$nb_days -print | xargs tar -cvf $MAITUT/BCK_DATA.tar gzip $MAITUT/BCK_DATA.tar.gz The fact that the TAR is very big, at the end I need to generate only the GZ file. The option z on the tar... (2 Replies)
Discussion started by: royinfo.alain
2 Replies

10. HP-UX

Hpux find tar gzip

Hello, I will like to execute a find, tar & gzip in one command. find * -type f -mtime -$nb_days -print | xargs tar -cvf $MAITUT/BCK_DATA.tar gzip $MAITUT/BCK_DATA.tar.gz The fact that the TAR is very big, at the end I need to generate only a compress file. Please note... (22 Replies)
Discussion started by: royinfo.alain
22 Replies
virt-tar-out(1) 					      Virtualization Support						   virt-tar-out(1)

NAME
virt-tar-out - Pack a virtual machine disk image directory into a tarball. SYNOPSIS
virt-tar-out -a disk.img /dir files.tar virt-tar-out -d domain /dir files.tar virt-tar-out -d domain /dir - | gzip --best > files.tar.gz DESCRIPTION
"virt-tar-out" packs a virtual machine disk image directory into a tarball. The first parameter is the absolute path of the virtual machine directory. The second parameter is the tar file to write. Use "-" to write to standard output. EXAMPLES
Download the home directories from a guest: virt-tar-out -d MyGuest /home - | gzip --best > homes.tar.gz JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH
This command is just a simple shell script wrapper around the guestfish(1) "tar-out" command. For anything more complex than a trivial copy, you are probably better off using guestfish directly. OPTIONS
Since the shell script just passes options straight to guestfish, read guestfish(1) to see the full list of options. SEE ALSO
guestfish(1), virt-cat(1), virt-copy-in(1), virt-copy-out(1), virt-edit(1), virt-tar-in(1), <http://libguestfs.org/>. AUTHORS
Richard W.M. Jones ("rjones at redhat dot com") COPYRIGHT
Copyright (C) 2011 Red Hat Inc. <http://libguestfs.org/> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. libguestfs-1.18.1 2013-12-07 virt-tar-out(1)
All times are GMT -4. The time now is 02:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy