[root@kconfigsvr1a ~]# mongorestore --version
mongorestore version 2.4.0-rc0
[root@kconfigsvr1a ~]# mongorestore -h
ERROR: required parameter is missing in 'host'

Import BSON files into MongoDB.

usage: mongorestore [options] [directory or filename to restore from]
options:
  --help                  produce help message
  -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)
  --ssl                   use SSL for all connections
  -u [ --username ] arg   username
  -p [ --password ] arg   password
  --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
  --noobjcheck            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        exclude oplog entries newer than provided timestamp 
                          (epoch[:ordinal])
  --keepIndexVersion      don't upgrade indexes to newest version
  --noOptionsRestore      don't restore collection options
  --noIndexRestore        don't restore indexes
  --w arg (=1)            minimum number of replicas per write

  --noobjcheck            don't validate object before inserting