Single line backups with find or cat and xargs, etc
Hi, I'm new here and this is my first post. I used command line Unix at work for 3 years... about 10 years ago! Now I can't figure out nor hunt down examples of how to do the following:
Say I built a list of file to backup like this:
So I am using find with a redirection operator to a plain text file. Now I want to say... cat that file and pipe it to xargs using the cp command to copy them all to a single directory so I can tar them into a tar ball... but I am screwing it up!!
then I want to do something like:
Several things going on here... trying to find to build a list to use to create a tar archive... more or less. And hey, if there is an easier/smarter way to do it, Thank you all! (I figure it can be done in 1 line at the shell prompt... but hey I am re-acquiring skills here!)
Hai I just want to find a file *.txt in particular direcotry and display the file name puls the content. Do someone know hot to do this, thanks.
I try :
find test/ -name '*.txt' | xargs cat
but It does'nt print out the file name, i want something below print out in my screen :
test/1.txt... (4 Replies)
Hello,
So I sorted my file as I was supposed to:
sort -n -r -k 2 -k 1 file1 | uniq > file2
and when I wrote
> cat file2
in the command line, I got what I was expecting, but in the script itself
...
sort -n -r -k 2 -k 1 averages | uniq > temp
cat file2
It wrote a whole... (21 Replies)
Hi,
I am having trouble getting a combination of commands to work.
I need to traverse through all sub-directories of a certain directory and 'cat' the contents of a particular file in the sub-directories.
The commands on their own work but when I combine them I get no output.
The... (4 Replies)
Hi
I have to find if a pattern is present in a line.
eq
line="dasdasd hello asdasdasd"
Have to find if "hello" is present in the line or not.
Which command to be used?
Thanks (10 Replies)
Hi,
I am creating a script to do a find and replace single/multiple lines in a file with any number of lines.
I have written a logic in a script that reads a reference file say "findrep" and populates two variables $FIND and $REPLACE
print $FIND gives
Hi How r $u
Rahul()
Note:... (0 Replies)
I am trying to delete files older than 60 days from a folder:
find /myfolder/*.dat -mtime +60 -exec rm {} \;
ERROR - argument list too long: find
I can't just give the folder name, as there are some files that I don't want to delete. So i need to give with the pattern (*.dat). I can... (3 Replies)
How can I recursively find all files in a directory and print out the file and first line number of any text blocks that match the below cases?
This would seem to involve find, xargs, *grep, regex, etc.
In summary, I want to find so-called empty "try-catch blocks" that do not contain code... (0 Replies)
Guys, need help.
I have a file that contains something like this:
abc
def
ghi
jkl
I want to print the first and last line of the file and the output should be in a single line.
so, output should be like this:
abc jkl (3 Replies)
Hi all,
How can i display the middle line of a file using a single line command? (6 Replies)
Discussion started by: Lakme Pemmaiah
6 Replies
LEARN ABOUT DEBIAN
virt-tar-in
virt-tar-in(1) Virtualization Support virt-tar-in(1)NAME
virt-tar-in - Unpack a tarball into a virtual machine disk image.
SYNOPSIS
virt-tar-in -a disk.img data.tar /destination
virt-tar-in -d domain data.tar /destination
zcat data.tar.gz | virt-tar-in -d domain - /destination
WARNING
Using "virt-tar-in" on live virtual machines can be dangerous, potentially causing disk corruption. The virtual machine must be shut down
before you use this command.
DESCRIPTION
"virt-tar-in" unpacks an uncompressed tarball into a virtual machine disk image or named libvirt domain.
The first parameter is the tar file. Use "-" to read the tar file from standard input. The second parameter is the absolute target
directory to unpack into.
EXAMPLES
Upload a home directory to a guest:
virt-tar-in -d MyGuest homes.tar /home
JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH
This command is just a simple shell script wrapper around the guestfish(1) "tar-in" 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-make-fs(1), virt-tar-out(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-in(1)