C:\Program Files\mongodb\bin

//备份
mongodump -h 127.0.0.1:27017 -d test -o c:\data\dump

//恢复
 mongorestore -h 127.0.0.1:27017 -d test --directoryperdb c:\data\dump\test

 -v [ --verbose ]           be more verbose (include multiple times
                    for more verbosity e.g. -vvvvv)
 --version               print the program's version and exit
 -h [ --host ] arg           mongo host to connect to ( set
                    name>/s1,s2 for sets)
 --port arg              server port. Can also use --host
                    hostname:port
 --ipv6                enable IPv6 support (disabled by
                    default)
 -u [ --username ] arg         username
 -p [ --password ] arg         password
 --authenticationDatabase arg     user source (defaults to dbname)
 --authenticationMechanism arg (=MONGODB-CR)
                    authentication mechanism
 --dbpath arg             directly access mongod database files
                    in the given path, instead of
                    connecting to a mongod server - needs
                    to lock the data directory, so cannot
                    be used if a mongod is currently
                    accessing the same path
 --directoryperdb           each db is in a separate directly
                    (relevant only if dbpath specified)
 --journal               enable journaling (relevant only if
                    dbpath specified)
 -d [ --db ] arg            database to use
 -c [ --collection ] arg        collection to use (some commands)
 --objcheck              validate object before inserting
                    (default)
 --noobjcheck             don't validate object before inserting
 --filter arg             filter to apply before inserting
 --drop                drop each collection before import
 --oplogReplay             replay oplog for point-in-time restore
 --oplogLimit arg           include oplog entries before the
                    provided Timestamp (seconds[:ordinal])
                    during the oplog replay; the ordinal
                    value is optional
 --keepIndexVersion          don't upgrade indexes to newest version
 --noOptionsRestore          don't restore collection options
 --noIndexRestore           don't restore indexes
 --w arg (=0)             minimum number of replicas per write

vim /home/mongoBeiFen.sh

#!/bin/bash
shijie=`date +%Y%m%d%H`
backmongodbFile=mongodb$shijie.tar.gz
cd /home/mongoDbback/
/usr/local/mongo/bin/mongodump -h 127.0.0.1 --port 27017 -u mongo -p 123456 -d my_mongodb -o my_mongodb_dump/
tar czf $backmongodbFile my_mongodb_dump/
rm my_mongodb_dump -rf 

./mongoBeiFen.sh  

/usr/local/mongo/bin/mongorestore -d my_mongodb my_mongodb_dump/my_mongodb/*