import/export all collection in mongodb

mongoexport-all-collection.sh

#!/bin/bash

DB=$1
COLLECTIONS=$(mongo localhost:27017/$DB --quiet --eval "db.getCollectionNames()" | sed -e 's/[,\["]/ /g;s/  */ /g')
COLLECTIONS=${COLLECTIONS#\[}
COLLECTIONS=${COLLECTIONS%\]}

for collection in $COLLECTIONS; do
    echo "Exporting $DB/$collection ..."
    mongoexport -d $DB -c $collection -o $collection.json
done

mongoimport-all-collection.sh

DB=$1
COLLECTIONS=$(ls | grep json)

for collection in $COLLECTIONS; do
    echo "Exporting $DB/$collection ..."
    mongoimport -d $DB $collection
done