diff --git a/shell/backup_db b/shell/backup_db
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index 0000000..435ef8e
--- /dev/null
+++ b/shell/backup_db
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+#!/bin/bash
+# Create backups directory
+[[ -d /var/www/note_kfet/backups ]] || (mkdir /var/www/note_kfet/backups && chown www-data:www-data /var/www/note_kfet/backups)
+date=$(date +%Y-%m-%d)
+# Backup database and save it as tar archive
+su postgres -c "pg_dump -F t note_db" | tee "/var/www/note_kfet/backups/$date.tar" > /dev/null
+# Compress backup as gzip
+gzip "/var/www/note_kfet/backups/$date.tar"
+chown www-data:www-data "/var/www/note_kfet/backups/$date.tar.gz"
+# Delete backups that have more than 30 days
+find /var/www/note_kfet/backups -type f -mtime +30 -exec rm {} \;
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