An example script for backing up a database
#!/bin/bash
backupfolder="/backup/mongo/`date +"%Y-%m-%d_%H.%M"`"
db="db_to_backup"
# do the dump
mongodump --uri="mongodb://user:pass@domain:27017/" --db=$db -v --gzip --out=$backupfolder
# repack with zip - 0 - just basically adding a password...
zip -0 -P alamoAlamo $backupfolder/backup.zip $backupfolder/$db/*.gz
# cleanup original *.gz files
rm -fR $backupfolder/$db