#!/bin/bash
# rsync bkup, hardlinks to link-dir
# only complete to correct link_dir
# bkup-dir vgenerated automatically
# 191113, 191116

DATUM=`/bin/date '+%y%m%d-%H%M'`
src=/media/gerd/
dest_1=/media/DATA-4T/SIK/SIK-rasp-pi-3b-buster/Raspi-32GB-lite-Repeater-with-wifi-dongle/   # base dir
#dest_1=/media/DATA-4T/SIK/SIK-rasp-pi-3b-buster/Raspi-32GB-lite-Repeater-additional-wifi-dongle/   # base dir
#dest_1=/media/sdb2/SIK/SIK-rasp-pi-3b-buster/Raspi-32GB-lite-AccessPoint/
#      /media/sdb2/SIK/SIK-rasp-pi-3b-buster/Raspi-32GB-lite-AccessPoint/
dest_2=${DATUM}-bkup/
link_dir=200412-2217-bkup/

#link_dir=200405-2246-bkup/
#link_dir=191118-1250-bkup/     ## z.B. link_dir=${dest_1}/191111-0738-copy_all_files-err/
#exclude="--exclude=rpi-10-AP"
#dry_run=--dry-run
log_file="--log-file=$DATUM-rsync-log"


mkdir $dest_2
opts="$log_file $exclude $dry_run"

echo "rsync -av $opts --link-dest=$dest_1$link_dir $src $dest_1$dest_2" > $DATUM-rsync-log
rsync -av $opts --link-dest=$dest_1$link_dir $src $dest_1$dest_2


#dest=Raspi-32GB-light-vdr-tst-5/190624-2033-bkup/
#link_dir=/media/DATA-4T/SIK/SIK-rasp-pi-3b-stretch/Raspi-32GB-light-vdr-tst-5/181118-2022-bkup/
#opts=" --log-file=rsync-log-2"
# --delete 

#rsync -av --log-file=rsync-log --delete $src $dest

#rsync -av --link-dest=<path> --exclude <path> <src-path> <dest-path>