This script is designed to create incremental backups to improve the way data is preserved at the operating system level

The advantage of this script are the next:

• Create a backup with Point In Time Recovery.
• Compress files to improve use of space.
• Automate backups. (daily, weekly, monthly and yearly)
• Reduce the time to create new backups.
• Select Volume or Disk to make the new backups.
• Order backups by years. (create a directory with year's name)

Linux-based OS tar (GNU tar) 1.30 or higher

You have to edit this script "inc_lnx_bkps.sh" to costumize the next variables

src=/change/from/origin/files/dir
path=/change/to/target/files/dir
script_path=/chage/to/dir/scripts/files

e.g. src=/home/user_name/data path=/media/volume1/bkp_data script_path=/home/user/inc_bkps/

Execute script in script_path

chmod +x inc_lnx_bkps.sh
mkdir -p /tmp/logs
./inc_lnx_bkps.sh >> /tmp/logs/inc_lnx_bkps.$$.log 2>&1

e.g. output:

total 35405
-rwxrwxrwx 1 user users 21968087 nov  8 03:34 bkp0.tgz
-rwxrwxrwx 1 user users 14220891 nov  8 19:00 bkp1.tgz
-rwxrwxrwx 1 user users      113 nov  8 03:08 restore_lnx_bkps.sh
-rwxrwxrwx 1 user users    60528 nov  8 19:00 snapshot.snar

sudo su
crontab -e

# weekly_backup
0 19 * * 0 <script_path>/inc_lnx_bkps.sh >> /tmp/logs/inc_lnx_bkps.$$.log 2>&1

You have to change path variable with the correct target directory into the restore_lnx_bkps.sh

path=/change/to/target/files/dir

Execute restore script

chmod +x restore_lnx_bkps.sh
./restore_lnx_bkps.sh 

You have to change path variable with the correct target directory into the ptr_lnx_bkps.sh

path=/change/to/target/files/dir
# change with the last number bkp file to restore
n_times=10 

e.g. from bkp0.tgz (2024-11-04 19:00) to bkp10.tgz (2024-11-10 19:00)

Execute PTR script

chmod +x ptr_lnx_bkps.sh
./ptr_lnx_bkps.sh