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Full Discussion: Crontab compressed version
Top Forums UNIX for Dummies Questions & Answers Crontab compressed version Post 302960788 by bakunin on Thursday 19th of November 2015 03:17:44 PM
Old 11-19-2015
Quote:
Originally Posted by zekeboy
30 20 ** 2 tar –cz /home/user1 > /home/user1/backup.tar.gz
Is it alright ?
Sigh...

RudiC has told you two times now to separate the two asterisks by a space. The line as you present it is still wrong because of that and no matter what options to tar you try will change anything about that BECAUSE THIS IS NOT THE PROBLEM IN FIRST PLACE!

Try a layered approach: first, consult the man pages of cron and learn how to configure a (any) command to be run by cron. Only then concern yourself with constructing the correct tar-command: first manually. When it finally does what you want it to do put it into cron using your new-found expertise on creating cron-jobs.

So much as a starter: cron jobs have NOT the same environment as commands run from an interactive session, namely the PATH variable is empty and therefore you should use full pathnames. instead of tar <cmd> /some/path you need to write something like /usr/bin/tar <cmd> /some/path. Notice the full path to the command. Your path might differ, but you can easily get the (on your system) correct path with the which command:

Code:
# which tar
/usr/bin/tar

I hope this helps.

bakunin
 

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LEARN ABOUT SUSE

virt-tar-out

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)
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