You have to store data somewhere. We have two choices - memory or mass storage (tape, disk, etc). You just eliminated one, so we are left with memory. That means a program has to receive the data
When tar outputs, not just data comes out, also metadata. So you get to filter it out, I don't know how to do that a priori.
Your program has to read from stdin, pitch metadata, and then keep real data. I wonder what you do with it then if you don't put some of it to disk or the tty.
The only point I would make is this is an odd request as tar is inherently slower than disk I/O, so why would you do all this? No spare disk space?
Hey guys complete n00b here so I'll try my best at explaining.
I'm creating a backup and restore utility and decided to use tar. I create a backup folder in each user's account and when backing up (say word processing files), I use the following:
tar cvf /home/user/backup/wpbackup.tar... (2 Replies)
hi,
I am in a weird situation. I have a parent tarball which contains 2 sub tarballs.
The structure is such :
Parent.tar.gz ---- > child1.tar.gz and child2.tar.gz
I need to get the size of the parent tarball without untaring it
I know that the command is gunzip -c parent.tar.gz | wc -c ... (1 Reply)
Hi,
I have tar filw which has multiple directories which contain files.
When i extract using tar -xf the directory structure also get extracted.
I require only files and not directory structures as there will be overhead of moving the files again.
So i searched here and got a solution but... (4 Replies)
Hi
Somebody must have done this before, but I can't seem to find any answer on my problem.
On HP-UX 11i v3 I have a relatively large tar ball (~120 GB), and I want to create the directory structure only from the archive.
There is no option to make a new archive with only the directory... (3 Replies)
Hi All,
I would like to know couple of ways to list the content available in tar and gzipped file without extracting.
i.e., I would like to display the contents of test.tar.gz without extracting.
Note :: please suggest a command other that tar -ztvf (9 Replies)
#cat a
BAC064DAL
BAC063DAL
BAC056PHX
BAC066DAL
BAC062PHX
BAC062DAL
BAC060DAL
BAC058PHX
BAC054PHX
BAC051PHX
# for i in `cat a`
> do
> tar xvf $a/$a*.tar*
> done
tar: /*.tar*: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: /*.tar*: Cannot... (3 Replies)
Hi,
uname -a
SunOS mymac 5.11 11.2 sun4u sparc SUNW,SPARC-Enterprise
I need to tar a folder /tmp/moht but do not want these three folders to be included in the tar file -> savejpg, bmpsave and imgsave
I tried --exclude, -path, -not options but it says bad option
Can you help me with... (3 Replies)
I have a tar file hello.tar which is 95 GB.
hello.tar has many files and folders including some tar files as well.
I wish to create a new tar ball which should maintain only the folder structure of hello.tar and the tar ball within the hello.tar
So basically the idea is to untar... (2 Replies)
Hi all. I'm hitting a problem creating a tar archive in one directory from files located in a different directory. It fails when I replace the absolute paths with variables in the script but works if I just run tar on the cmdln. E.g.
#!/bin/ksh
BASE=$PWD
STAGE=$BASE/stage
LOG=$BASE/log... (4 Replies)
Hi Team,
Following unix command is throwing error. Can anyone please help me to fix the issue?
tar -cvf /aa/bb/cc/tarball1.tar /x/y/z1/abc.ksh /x/y/z2/pqr.txt /x/y/z3/lmn.tmp
Error message thrown:
tar: Removing leading `/' from member names
OS: uname -a
Linux xyz... (1 Reply)
Discussion started by: kmanivan82
1 Replies
LEARN ABOUT DEBIAN
gem2deb
GEM2DEB(1)GEM2DEB(1)NAME
gem2deb - converts Rubygems' .gem file into Debian package
SYNOPSIS
gem2deb [OPTIONS] GEMNAME (to download the gem with gem fetch)
gem2deb [OPTIONS] GEMFILE (to use a local .gem file)
DESCRIPTION
gem2deb converts the gem into a Debian source package, and then will attempt to build it. The process is made of several steps.
First, gem2deb converts the gem file to a tar.gz archive containing a metadata.yml file with the Gem specification. This is equivalent to
what gem2tgz does.
Then, gem2deb unpacks the tar.gz archive and prepares a Debian source package, guess many of the defaults from the files included in the
archive, or the Gem specification. This is equivalent to what dh-make-ruby does. gem2deb cannot determine all parameters for obvious
reasons. It is recommended to search for the "FIXME" string in the debian/ directory. The generated Debian source package uses dh_ruby to
build the package.
Finally, gem2deb tries to build the source and binary packages using dpkg-buildpackage.
OPTIONS -t, --only-tarball
Stop after creating the tar.gz archive.
-s, --only-source-dir
Stop after preparing the Debian source package directory (do not attempt to build the package).
-S, --only-debian-source
Only build a Debian source package (do not build binary packages).
-p PACKAGE, --package PACKAGE
Specify package name (default: ruby-*). Passed to dh-make-ruby. See dh-make-ruby(1).
--ruby-versions VERSIONS
Ruby versions to build the package for (default: all). Passed to dh-make-ruby. See dh-make-ruby(1).
-h, --help
Displays gem2deb usage information.
-v, --version
Displays gem2deb version information.
HOW THE .GEM -> .TGZ CONVERSION WORKS
A gem named mygem-0.1.0.gem is converted in a tarball with (approximately) the following steps:
mkdir mygem-0.1.0
cd mygem-0.1.0
tar xfm /absolute/path/to/mygem-0.1.0.gem
tar xzfm data.tar.gz
zcat metadata.gz > metadata.yml
rm -f data.tar.gz metadata.gz
cd ..
tar czf mygem-0.1.0.tar.gz mygem-0.1.0
rm -rf mygem-0.1.0
The generated tarball has the following properties:
Files
It contains all the files the gem contains.
Metadata
It contains the gem metadata ends up in a file named ``metadata.yml`` inside the mygem-0.1.0 directory.
SEE ALSO dh_ruby(1)COPYRIGHT AND AUTHORS
Copyright (c) 2011, Lucas Nussbaum <lucas@debian.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 3 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, see <http://www.gnu.org/licenses/>.
2012-03-06 GEM2DEB(1)