VovaTiunov

#!/bin/bash
mkdir JUSTFORBACKUP
echo "Path to Directory, EXAMPLE:/home/admin00/Desktop"
#read pathToDirectory
echo "Rasshirenie, EXAMPLE:.txt"
#read rasshirenie
pathToDirectory="/home/admin00/Desktop/aaa/"
rasshirenie=".txt"
maxCopiesCount=5
currentDate=$(date +%Y-%m-%d-%S)
#firstsize=$(du -bS *.txt $pathToDirectory)


#archivate
tar -cf JUSTFORBACKUP/ArchiveForBackup$currentDate.tar $pathToDirectory*$rasshirenie


#check if archive is bad
tar -xf JUSTFORBACKUP/ArchiveForBackup$currentDate.tar >> /dev/null; echo $?



#delete old copies
allCount=$((ls -f JUSTFORBACKUP)|(wc -l))
copiesCount=$(($allCount-2))  #get Copies count
for i in $(find -type f -name "*.tar" | sort)
do
if [[ $copiesCount < $(($maxCopiesCount+1)) ]]
then
echo $copiesCount
break
else
rm $i
copiesCount=$(($copiesCount-1))
echo $copiesCount
fi
done


#time when you do this
#$(crontab -l; echo "0 0 * * 5/home/admin00/Desktop/backup.sh") | crontab -
#cat <(crontab -l) <(echo "0 0 * * 5/home/admin00/Desktop/backup.sh") | crontab -
#$(crontab -l 2>&/dev/null; echo "0 0 * * 5/home/admin00/Desktop/backup.sh")|crontab -
#crontab -l|{cat; echo "0 0 * * 5/home/admin00/Desktop/backup.sh";}|crontab -
#does backup every friday
# in terminal: crontab -e, then 0 0 * * 5/home/admin00/Desktop/backup.sh