پرامپت ساخت اسکریپت بکاپ خودکار پوشه با Bash

```bash #!/bin/bash # ======================= # Bash Backup Script # ======================= # CONFIGURATION SRC_DIR="/home/alex/documents" DEST_DIR="/mnt/backup_drive/backups" LOG_FILE="/mnt/backup_drive/backup_log.txt" EMAIL="user@example.com" # Set your alert email here MIN_FREE_SPACE_GB=5 # Minimum free space (in GB) required # --- Helper: Log functions --- log() { echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE" } # --- Helper: Send failure email --- send_fail_email() { echo -e "Subject: Backup FAILED\nBackup failed: $1\nCheck log at $LOG_FILE" | sendmail "$EMAIL" } # --- Parse optional arguments --- SCHEDULE="" for arg in "$@"; do case $arg in --daily) SCHEDULE="daily";; --weekly) SCHEDULE="weekly";; esac done # --- Check disk space --- FREE_SPACE_GB=$(df -PB1G "$DEST_DIR" 2>/dev/null | awk 'NR==2 {print $4}' | sed 's/G//') if [[ -z "$FREE_SPACE_GB" || "$FREE_SPACE_GB" -lt "$MIN_FREE_SPACE_GB" ]]; then log "ERROR: Not enough disk space for backup." send_fail_email "Insufficient disk space." exit 1 fi # --- Prepare Backup File Name --- DATE_TAG=$(date +'%Y%m%d_%H%M%S') BACKUP_FILE="backup_${DATE_TAG}.tar.gz" BACKUP_PATH="$DEST_DIR/$BACKUP_FILE" # --- Perform backup --- log "Starting backup of $SRC_DIR to $BACKUP_PATH." tar -czf "$BACKUP_PATH" -C "$SRC_DIR" . if [ $? -ne 0 ]; then log "ERROR: Backup failed during compression." send_fail_email "tar failed." exit 1 fi log "Backup completed successfully." # --- Print scheduling instructions if needed --- if [ "$SCHEDULE" == "daily" ]; then log "Reminder: To schedule daily backups, add the following to your crontab:" echo "0 2 * * * /path/to/this_script.sh --daily" elif [ "$SCHEDULE" == "weekly" ]; then log "Reminder: To schedule weekly backups, add the following to your crontab:" echo "0 2 * * 0 /path/to/this_script.sh --weekly" fi ``` --- ## Usage Guide 1. **Configure email:** - Set your email address in the `EMAIL` variable in the script. 2. **Run script manually:** ```bash bash /path/to/this_script.sh ``` Or for scheduling reminders: ```bash bash /path/to/this_script.sh --daily bash /path/to/this_script.sh --weekly ``` 3. **Check logs:** - Backup logs and errors are recorded in `/mnt/backup_drive/backup_log.txt`. 4. **Automate:** - For daily or weekly backups, add the shown `crontab` lines to your crontab (using `crontab -e`). 5. **Email alerts:** - The script uses `sendmail` for alerts — ensure it's installed and configured on your system.