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Full Discussion: unusual problem with cp command
Top Forums UNIX for Dummies Questions & Answers unusual problem with cp command Post 302690869 by methyl on Thursday 23rd of August 2012 12:58:56 PM
Old 08-23-2012
jim mcnamara has got it.
You are sometimes picking up nascent files just after they have been created and before they contain data (hence the strange permissions). You could equally have been picking up part-written files which have the correct permissions. This situation tends to worsen with time once the directory file becomes fragmented.

We would suggest building a simple processing delay into the script by using the find command to only process files which are say at least one minute old (or more than the longest time that it takes to create a complete file - whichever is the greater). You can use find to check individual files.

The normal approach is to always use temporary file names when creating or copying a file, then rename the file to it's correct name when the process completes.
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LEARN ABOUT SUSE

virt-copy-in

virt-copy-in(1) 					      Virtualization Support						   virt-copy-in(1)

NAME

       virt-copy-in - Copy files and directories into a virtual machine disk image.

SYNOPSIS

	virt-copy-in -a disk.img file|dir [file|dir ...] /destination

	virt-copy-in -d domain file|dir [file|dir ...] /destination

WARNING

       Using "virt-copy-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-copy-in" copies files and directories from the local disk into a virtual machine disk image or named libvirt domain.

       You can give one of more filenames and directories on the command line.	Directories are copied in recursively.	The final parameter must
       be the destination directory in the disk image which must be an absolute path starting with a "/" character.

EXAMPLES

       Update "/etc/resolv.conf" in a guest:

	virt-copy-in -d MyGuest resolv.conf /etc

       Upload a home directory to a guest:

	virt-copy-in -d MyGuest skel /home

JUST A SHELL SCRIPT WRAPPER AROUND GUESTFISH

       This command is just a simple shell script wrapper around the guestfish(1) "copy-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-out(1), virt-edit(1), virt-tar-in(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-copy-in(1)
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