Hello,
why did you not use something as backup2l ?
Best wishes,
Jerome
On 27/06/2024 20:23, pe...@easthope.ca wrote:
Hi,
My working data is in a directory we can refer to as A. A is on a
removable flash store. "du -hs /home/me/A" reports 3.0G. I want a
reliable backup of most files A/*.
I created a directory "Backup" on the HDD and apply this shell
function whenever motivated.
Backup() { \
if [ $# -gt 1 ]; then
echo "Too many arguments.";
else
echo "0 or 1 arguments are OK.";
source="/home/me/A/*";
echo "source is $source.";
if [ $# -eq 0 ]; then
echo "0 arguments is OK.";
destination=/home/me/Backup;
echo "destination is $destination.";
else
echo "1 argument is OK.";
destination=/home/me/$1;
echo "destination is $destination.";
fi;
echo "Executing sync and rsync.";
sync;
rsync \
--exclude='Trap*' \
--exclude='*.mp3' \
--exclude='*.mp4' \
-auv $source $destination ;
/bin/ls -ld $destination/MailMessages;
printf "du -hs $destination => ";
du -hs $destination;
fi;
}
When the flash store fails, work since the last execution of Backup
can be lost.
In case the Backup directory on the HDD is lost or I want to see an
old file not current in A, I want backups of Backup. This function is
applied every week or two to write to a DVD.
FilesToDVD () { \
printf "Insert open or new DVD-R.";
read t;
startPath=$PWD;
echo "startPath is $startPath";
source=/home/me/Backup;
echo "source is $source";
cd $source;
xorriso -for_backup -dev /dev/sr0 \
-update_r . / \
-commit \
-toc -check_md5 failure -- \
-eject all ;
cd $startPath ;
echo " xorriso -dev /dev/sr0 -toc ";
echo " mount -o sbsector=nnnnnn /dev/sr0 /mnt/iso "; }
Finding a file as it existed months or years ago can be tedious. For
example, find A/MailMessages as it was at 2023.02.07. Otherwise the
backup system works well.
Now I have a pair of 500 GB external USB drives. Large compared to my
working data of ~3 GB. Please suggest improvements to my backup
system by exploiting these drives. I can imagine a complete copy of A
onto an external drive for each backup; but with most files in A not
changing during the backup interval, that is inefficient.
Thanks, ... Peter E.
