usb.conf

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config_version	1.2
snapshot_root	/mnt/usb
no_create_root	0
cmd_cp		/bin/cp
cmd_rm		/bin/rm
cmd_rsync	/usr/bin/rsync
cmd_logger	/usr/bin/logger
retain	daily	10
retain	week	4
retain	gamma	2
verbose		2
loglevel	3
logfile	/var/log/rsnapshot.log
lockfile	/var/run/rsnapshotusb.pid
 
# --------------------------------------- #  
backup	/daten/	name/	+rsync_long_args=--no-relative
# --------------------------------------- #

usb.backup.sh

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#!/bin/bash
# ------------------ ranko skoric ------------------- #  
# ------------------  24.09.2021 -------------------- #
 
umount /mnt/usb
 
configfile="/root/usb.conf"
 
usbuuid=`/usr/sbin/blkid | grep usb | awk '{print $2}' | sed 's/"//g'`
usb1="UUID=b14adfcb-383f-4d2b-af90-367528de577c"
usb2="UUID=d7133be1-05ac-4e45-9b8f-4c2cc562133b"
 
echo "usb is on $usbuuid"
echo "$usb1"
echo "$usb2"
 
# ---------------------------------------------------- # 
if [ "$usbuuid" == "$usb1" ]
then
tempfile="/root/usb1.temp.sh"
else
tempfile="/root/usb2.temp.sh"
fi
# ---------------------------------------------------- # 
 
rconf=`grep -Ev '^(#|$)' $configfile | grep retain |  awk '{print $2" "$3}' | sed 'N;N;s/\n/ /g'`
line1=($rconf);
# prüft ob temp file existiert
 
if [ ! -f $tempfile ] 
then
echo ${line1[*]} | tee -a  $tempfile
echo ${line1[*]} | tee -a  $tempfile
# echo "3" | tee -a  $tempfile
fi 
# erste zeile im temp file überschreiben 
sed -i -e 1c"${line1[*]}" $tempfile;
# zweite zeile aus temp file auslesen
line2=(`awk 'NR==2' $tempfile`);
# i zuweisen alpha, beta, gamma
i=${line2[0]}
 
a=${line2[1]}
let a=$a-1
line2[1]=$a
echo ${line2[1]}
 
if  [ $a -lt 0 ]
then
	line2[1]=${line1[1]}
	# i ist beta
	i=${line2[2]}
	b=${line2[3]}
	let b=$b-1
	line2[3]=$b
 
		if [ $b -lt 0 ]
		then
		line2[3]=${line1[3]}		
		# i ist gamma
		i=${line2[4]}
		c=${line2[5]}
		let c=$c-1
		line2[5]=$c	
			if [ $c -lt 0 ] 
			then
			line2[5]=${line1[5]}
			fi
		fi
fi
 
sed -i -e 2c"${line2[*]}" $tempfile;
#----------------- welche Festpatte angeschlossen ist  -------------------#"
 
hdfile="/root/hd.file.log"
# source /root/usb.backup.sh
 
if [ ! -f $hdfile ]
then
echo "day 1 usb 0 0" | tee -a  $hdfile
fi
 
a=`awk 'NR==1' $hdfile`;
text=($a)
# ------------------------------------ #
if [ "$usbuuid" == "$usb1" ]
then 
	text[3]=0
	if [ ! ${text[3]} == ${text[4]} ]
	then 
    		text[1]=0
    		text[4]=${text[3]}
    	fi
else
	text[3]=1
 
	 if [ ! ${text[3]} == ${text[4]} ]
	 then 
 
    		text[1]=0
    		text[4]=${text[3]}
    	 fi 
fi
# -------------------------------------- #
	day=${text[1]}
	let day++
	text[1]=$day
	echo ${text[*]} > $hdfile
	cat $hdfile
# ------------------ usb backup starten ---------------------# 
# 
if [ "$usbuuid" == "$usb1" ]
then
echo "usb1"
 
mount $usb1 /mnt/usb
 	if [ -d /mnt/usb/lost+found ]
 	then
  	rsnapshot -c $configfile $i
	/bin/bash /root/me.usb.backup.sh
 	fi
sleep 4
umount /mnt/usb
echo "exit"
fi
# --------------------------------------- #
if [ "$usbuuid" == "$usb2" ]
then
echo "usb2"
mount $usb2 /mnt/usb
 	if [ -d /mnt/usb/lost+found ]
 	then
	rsnapshot -c $configfile $i
 	/bin/bash /root/me.usb.backup.sh
 	fi 
sleep 4
umount /mnt/usb
fi 
# ----------------------------------------------------- #