mongodb之常用命令

 
 
 
 
help                         show help
 
show dbs                     show database names
 
show collections             show collections in current database
 
show users                   show users in current database
 
show profile                 show most recent system.profile entries with  time >= 1ms
 
use <db name>                set curent database to <db  name>
 
 
 
db.addUser (username, password)
 
db.removeUser(username)
 
 
 
db.cloneDatabase(fromhost)
 
db.copyDatabase(fromdb, todb, fromhost)
 
db.createCollection(name, { size : ..., capped : ..., max : ... } )
 
 
 
db.getName()
 
db.dropDatabase()
 
 
// runs the collstats] command on each collection in the  database 
db.printCollectionStats()
 
 
 
db.currentOp() displays the current operation in the db
 
db.killOp() kills the current operation in the db
 
 
 
db.getProfilingLevel()
 
db.setProfilingLevel(level) 0=off 1=slow 2=all
 
 
 
db.getReplicationInfo()
 
db.printReplicationInfo()
 
db.printSlaveReplicationInfo()
 
db.repairDatabase()
 
 
 
db.version() current version of the server
 
 
 
db.shutdownServer()
 
 
 
======ddl
 
 
 
db.foo.drop() drop the collection
 
db.foo.dropIndex(name)
 
db.foo.dropIndexes()
 
db.foo.getIndexes()
 
db.foo.ensureIndex(keypattern,options) - options object has these  possible
 
                                         fields: name, unique,  dropDups
 
 
 
db.foo.find( [query] , [fields])       - first parameter is an  optional
 
                                         query filter. second  parameter
 
                                         is optional
 
                                         set of fields to 
return 
.
 
                                       e.g. db.foo.find(
 
                                                  { x : 77 } ,
 
                                                  { name : 1 , x : 1 }  )
 
db.foo.find(...).count()
 
db.foo.find(...).limit(n)
 
db.foo.find(...).skip(n)
 
db.foo.find(...).sort(...)
 
db.foo.findOne([query])
 
 
 
db.foo.getDB() get DB object associated with collection
 
 
 
db.foo.count()
 
db.foo.group( { key : ..., initial: ..., reduce : ...[, cond: ...] }  )
 
 
 
db.foo.renameCollection( newName ) renames the collection
 
 
 
db.foo.stats()
 
db.foo.dataSize()
 
db.foo.storageSize() - includes free space allocated to 
this 
collection
 
db.foo.totalIndexSize() - size in bytes of all the indexes
 
db.foo.totalSize() - storage allocated 
for 
all data and indexes
 
db.foo.validate() (slow)
 
 
 
db.foo.insert(obj)
 
db.foo.update(query, object[, upsert_bool])
 
db.foo.save(obj)
 
db.foo.remove(query)                   - remove objects matching  query
 
                                         remove({}) will remove  all
 
粘贴自： <http://www.mongodb.org/display/DOCS/DBA+Operations+from+the+Shell>