So I've never done this before with the actual tar command windows: easy select all three extract here, Linux probably something similar. but I'm using a system that cant do that, so I need the command for extracting multiple split tars as one. Tried tar -xvf file.tar file.tar file.tar but it didn't work.
answer: $ cat filenamewithoutpartnumberorextension* > file.tar
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I have two systems that I'm splitting processing between, and I'm trying to find the most efficient way to move the data between the two. I've figured out how to tar and gzip to an archive on the first server ("serverA") and then use rsync to copy to the remote host ("serverB"). However, when I untar/unzip the data there, it saves the archive including the full path name from the original server. So if on server A my data is in:
/serverA/directory/a/lot/of/subdirs/myData/*
and, using this command:
tar -zcvf /serverA/directory/a/lot/of/subdirs/myData-archive.tar.gz /serverA/directory/a/lot/of/subdirs/myData/
Everything in .../myData is successfully tarred and zipped in myData-archive.tar.gz
However, after copying the archive, when I try to untar/unzip on the second host (I manually log in here to finish the processing, the first step of which is to untar/unzip) using this command:
tar -zxvf /serverB/current/directory/myData-archive.tar.gz
It untars everything in my current directory (serverB/current/directory/), however it looks like this:
/serverB/current/directory/serverA/directory/a/lot/of/subdirs/myData/Data*ext
How should I formulate both the tar commands so that my data ends up in a directory called
/serverB/current/directory/dataHERE/
?
I know I'll need the -C flag to untar into a different directory (in my case, /serverB/current/directory/dataHERE ), but I still can't figure out how to make it so that the entire path is not included when the archive gets untarred. I've seen similar posts but none that I saw discussed how to do this when moving between to different hosts.
UPDATE: per one of the answers in this question, I changed my commands to:
tar/zip on serverA:
tar -zcvf /serverA/directory/a/lot/of/subdirs/myData-archive.tar.gz serverA/directory/a/lot/of/subdirs/myData/ -C /serverA/directory/a/lot/of/subdirs/ myData
and, untar/unzip:
tar -zxvf /serverB/current/directory/myData-archive.tar.gz -C /serverB/current/directory/dataHERE
And now, not only does it untar/unzip the data to:
/serverB/current/directory/dataHERE/
like I wanted, but it also puts another copy of the data here:
/serverB/current/directory/serverA/directory/a/lot/of/subdirs/myData/
which I don't want. How do I need to fix my commands so that it only puts data in the first place?
On serverA do
( cd /serverA/directory/a/lot/of/subdirs; tar -zcvf myData-archive.tar.gz myData; )
After some more messing around, I figured out how to achieve what I wanted:
To tar on serverA:
tar -zcvf /serverA/directory/a/lot/of/subdirs/myData-archive.tar.gz -C /serverA/directory/a/lot/of/subdirs/ myData
Then to untar on serverB:
tar -zxvf /serverB/current/directory/myData-archive.tar.gz -C /serverB/current/directory/dataHERE
On server A, I created a tar file (backup.tar.gz) of the entire website /www. The tar file includes the top-level directory www
On server B, I want to put those files into /public_html but not include the top level directory www
Of course, tar -xzif backup.tar.gz places everything into /public_html/www
How do I do this?
Thanks!
You can use the --transform option to change the beginning of the archived file names to something else. As an example, in my case I had installed owncloud in directory named sscloud instead of owncloud. This caused problems when upgrading from the *.tar file. So I used the transform option like so:
tar xvf owncloud-10.3.2.tar.bz2 --transform='s/owncloud/sscloud/' --overwrite
The transform option takes sed-like commands. The above will replace the first occurrence of owncloud with sscloud.
Answer is:
tar --strip-components 1 -xvf backup.tar.gz
I kind of found the answer on the stackoverflow but have some confusion. I need some help.
I have a tar file which contains files and folders like this: usr/CCS/HMS*
I would like to extract all files and folders usr/CCS/HMS* but into a different filesystem, the new filesystem is /usr/TRAINP
HMS* should replace TRAINP*. TRAINP has folders like TRAINP/TRAINP.GL, TRAINP.AR, etc
the backup contains folders like usr/CCS/HMS/HMS.GL, usr/CCS/HMS.AR
When I am doing, it is restoring under /usr/TRAINP. I want usr/CCS/HMS* to replace /usr/TRAINP. This is kind of database restore with a different name.
Thanks a lot in advance.
Tar itself does not rename the contents when extracting. The best bet is to extract to some place in the target filesystem and move the results where you want.
For example:
cd /usr/CCS/TRAINP1
tar xf archive.tar usr/CCS/HMS1
mv usr/CCS/HMS1/* .
Or, if the TRAINP directories do not exist:
cd /
tar xf archive.tar usr/CCS
cd usr/CCS
for file in HMS*; do mv "$file" "TRAINP${file#HMS}"; done
Of course there are many variations and alternatives that will yield the same result. Note my example assumes usr/CCS belongs in /usr/CCS.
How do I list only the contents of a tar file that are actual files or links to files and not directories?
I ask this because I want to take the tar -tf of an archive then retrieve the files in it from another directory.
One option (assuming you are on a *NIX system) is to parse and filter the output from a verbose listing
tar -tvf abc.tar | awk '!/^d/ {print $NF}'
Although this is fraught with all the perils of parsing ls output
I have made some archive file with the tar gnome GUI on Ubuntu but when I try to extract them
tar zxvf archive_name
I get following error
Cannot open: Not a directory
What is the problem ?
Try extracting the archive in an empty directory; any existing files/directories in the extract target usually cause problems if names overlap.
I encountered the same issue (for each file within an archive) and I solved it by appending ".tar.gz" to the archive filename as I'd managed to download a PECL package without a file extension:
mv pecl_http pecl_http.tar.gz
I was then able to issue the following command to extract the contents of the archive:
tar -xzf pecl_http.tar.gz
You probably might already have a file with the same name that the tar is extracting a directory.
Try to tar in different location.
tar zxvf tar_name.tgz --one-top-level=new_directory_name
Try using tar -zxvf archive_name instead. I believe that the command format has changed, and it now requires the z (unzip) x (extract) v (verbose) f (filename...) parts as switches instead of plain text. The error comes from tar trying to do something to the file zxvf, which of course does not exist.