A simple bash script to backup multiple directories into compressed ZIP archives with automatic cleanup of old backups.

• Backup multiple directories in a single run
• Automatic ZIP compression
• Date-based backup file naming
• Automatic cleanup of old backups based on retention policy
• Configuration file for easy customization

1. Copy the example configuration file:

   cp backup_config.cfg.example backup_config.cfg

2. Edit backup_config.cfg with your specific settings:

   • FOLDERS: Comma-separated list of directories to backup
   • RETENTION_DAYS: Number of days to keep backup files
   • BACKUP_DIR: Directory where backups will be stored

3. Make sure the backup directory exists and has write permissions:

   mkdir -p /path/to/backup/directory

Run the backup script:

./backup.sh

The script will create ZIP files named {folder_name}_backup_{YYYY-MM-DD}.zip in your specified backup directory.

If you backup a folder named documents on 2024-01-15, the resulting file will be:

documents_backup_2024-01-15.zip

• bash
• zip command
• find command (for cleanup)

See LICENSE file for details.