How good is the compression rate of gzip when you use tar with the gzip option? I am pretty amazed that a 1 GB file was reduced to 1019K. This is what I did.
Code:
tar -cvf tar_test.tar.gz -T /list_of_files
ls -hl
-rw-r-----. 1 owner group 19 Jul 23 16:00 list_of_files
-rw-r-----. 1 owner group 1019K Sep 19 02:17 tar_test.tar.gz
I'm backing up one of my sites, and will be moving to another host. This was an expermintal site, and many of the directories won't be needed.
What tar command is needed to exclude directories from the compressed file? Could you also give an example.
also this might be the same comand, but -... (4 Replies)
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)
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)
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)
Hi, is there a way to use compression on the TAR command running on a AIX 4.2 ?
I did a "man tar" but did not see mentions of using compression, nor how to even find out the tar version.
I want to look into ways of reducing the amount of time to do backups. One backup is dumping database... (9 Replies)
Is there a GNU Tar available with compression option available for AIX 4.2 that I can directly use (not having to compile anything, simple installation) ? (1 Reply)
Hi Everyone,
I am a Ph.D student working on some image processing tasks and I have run into an interesting problem that I thought someone on here might have an idea about. This paper discusses a method to compare two images based upon the amount they can be compressed. Sorry, since this is my... (3 Replies)
Hello everyone,
As the title suggests, I am attempting to test adding gzip compression to a connection to an application I am testing. Currently I have the application set up with httptunnel, which forwards the connection to the remote host.
I would like to use a script to intercept the... (5 Replies)
Hi,
I used gzip command to compress a huge tar file. But I saw that compression % was more than 100%.
It might have inflated instead , probably because tar file is already packed properly.
So I thought of unzippping it. Now after unzip I expected the tar file to be of less size than... (12 Replies)
Discussion started by: vinay4889
12 Replies
LEARN ABOUT LINUX
shtool-tarball
SHTOOL-TARBALL.TMP(1) GNU Portable Shell Tool SHTOOL-TARBALL.TMP(1)NAME
shtool-tarball - GNU shtool command for rolling standardized tarballs
SYNOPSIS
shtool tarball [-t|--trace] [-v|--verbose] [-o|--output tarball] [-c|--compress prog] [-d|--directory directory] [-u|--user user]
[-g|--group group] [-e|--exclude pattern] path [path ...]
DESCRIPTION
This command is for rolling input files under path into a distribution tarballs which can be extracted by tar(1).
The four important aspects of good open source software tarballs are: (1) unpack into a single top-level directory, (2) top-level directory
corresponds to the tarball filename, (3) tarball files should be sorted and (4) arbitrary names for file owner and group.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-o, --output tarball
Output tarball to file tarball.
-c, --compress prog
Pipe resulting tarball through compression program prog.
-d, --directory directory
Sets the top-level directory into which the tarball unpacks. By default it is tarball without the trailing ".tar.*" extension.
-u, --user user
The user (owner) of files and directories in the tarball to user.
-g, --group group
The group of files and directories in the tarball to group.
-e, --exclude pattern
Exclude files and directories matching comma-separated list of regex pattern from the tarball. Directories are expanded before the
filtering takes place. The default filter pattern is ""CVS,\.cvsignore,\.svn,\.[oa]$"".
EXAMPLE
# Makefile.in
dist:
...
V=`shtool version -d short ...`;
shtool tarball -o foobar-$$V.tar.gz -c 'gzip -9'
-u bar -g gnu -e 'CVS,.cvsignore' .
HISTORY
The GNU shtool tarball command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1999 for GNU shtool.
SEE ALSO shtool(1), tar(1), compress(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-TARBALL.TMP(1)