incrementalcopy

#!/bin/bash
diskSpace=$(ssh root@192.168.21.101 df | grep /dev/sdb1 | awk '{print $4}')
catalogSize=$(du -s /home/student | tail -1 | awk '{print $1}')
while [ $diskSpace -lt $catalogSize ] ; do
    archiveToDelete=$(ssh root@192.168.21.101 ls -lv /mnt/archiwum_lokalne | head -2 | awk 'NR==2{print $9}')
    ssh root@192.168.21.101 rm -r /mnt/archiwum_lokalne/$archiveToDelete
    diskSpace=$(ssh root@192.168.21.101 df | grep /dev/sdb1 | awk '{print $4}')
done

date=$(date '+%Y_%m_%d_%H_%M_%S')
fileName="archiwum_$date"
archiveSource="/home/student/*"
destination="/mnt/archiwum_lokalne"
lastCopy=$(ssh root@192.168.21.101 ls -lv /mnt/archiwum_lokalne | tail -1 | awk '{print $9}')

mkdir $destination/$fileName
rsync -avh --link-dest=root@192.168.21.101:/mnt/archiwum/ $archiveSource root@192.168.21.101:$destination/$fileName
scp $destination/$fileName root@192.168.21.101:/mnt/archiwum_lokalne
archiveName="$destination/$fileName"
echo $archiveName