a simple bash script to backup specified or all databases from a mongodbserver
use
BACKUP_ALL=true
DATABASES_TO_EXCLUDE=("admin" "config" "local");
DATABASES_TO_BACKUP=();
to back up all databases, excluding admin, config and local
use
BACKUP_ALL=false
DATABASES_TO_EXCLUDE=("admin" "config" "local");
DATABASES_TO_BACKUP=("mydatabase");
to backup only the specified "mydatabase"