MongoDB基本管理命令

1 > db.createCollection(‘replicationColletion‘, {‘capped‘:true, ‘size‘:10240, ‘max‘:17855200})
2 { "ok" : 1 }
3 > show collections
4 replicationColletion
5 storeCollection
6 system.indexes 

1 > db.storeCollection.findOne({‘version‘:‘3.5‘})
2 {
3         "_id" : ObjectId("4ef970f23c1fc4613425accc"),
4         "version" : "3.5",
5         "segment" : "e3ol6"
6 }

 1 > db.page.reIndex()
 2 {
 3         "nIndexesWas" : 2,
 4         "msg" : "indexes dropped for collection",
 5         "ok" : 1,
 6         "nIndexes" : 2,
 7         "indexes" : [
 8                 {
 9                         "name" : "_id_",
10                         "ns" : "pagedb.page",
11                         "key" : {
12                                 "_id" : 1
13                         },
14                         "v" : 0
15                 },
16                 {
17                         "_id" : ObjectId("4ef977633c1fc4613425accd"),
18                         "ns" : "pagedb.page",
19                         "key" : {
20                                 "title" : 1,
21                                 "url" : -1
22                         },
23                         "name" : "title_1_url_-1",
24                         "v" : 0
25                 }
26         ],
27         "ok" : 1
28 }

1 > use fragment
2 switched to db fragment
3 > db.baseSe.find().count()
4 36749

1 {
2         "user" : "admin",
3         "readOnly" : false,
4         "pwd" : "995d2143e0bf79cba24b58b3e41852cd"
5 }

1 db.system.users.find()
2 { "_id" : ObjectId("4ef940a13c1fc4613425acc8"), "user" : "admin", "readOnly" : false, "pwd" : "995d2143e0bf79cba24b58b3e41852cd" }

1 db.system.users.find()
2 error: {
3         "$err" : "unauthorized db:admin lock type:-1 client:127.0.0.1", "code" : 10057
4 }

1 {
2         "info" : "now locked against writes, use db.$cmd.sys.unlock.findOne() to unlock",
3         "ok" : 1
4 }

1 {
2         "inprog" : [ ],
3         "fsyncLock" : 1,
4         "info" : "use db.$cmd.sys.unlock.findOne() to terminate the fsync write/snapshot lock"
5 }

1 { "ok" : 1, "info" : "unlock requested" }

1 { "inprog" : [ ] }

 1 mongoimport --help
 2 options:
 3   --help                  produce help message
 4   -v [ --verbose ]        be more verbose (include multiple times for more
 5                           verbosity e.g. -vvvvv)
 6   -h [ --host ] arg       mongo host to connect to ( <set name>/s1,s2 for sets)
 7   --port arg              server port. Can also use --host hostname:port
 8   --ipv6                  enable IPv6 support (disabled by default)
 9   -u [ --username ] arg   username
10   -p [ --password ] arg   password
11   --dbpath arg            directly access mongod database files in the given
12                           path, instead of connecting to a mongod  server -
13                           needs to lock the data directory, so cannot be used
14                           if a mongod is currently accessing the same path
15   --directoryperdb        if dbpath specified, each db is in a separate
16                           directory
17   -d [ --db ] arg         database to use
18   -c [ --collection ] arg collection to use (some commands)
19   -f [ --fields ] arg     comma separated list of field names e.g. -f name,age
20   --fieldFile arg         file with fields names - 1 per line
21   --ignoreBlanks          if given, empty fields in csv and tsv will be ignored
22   --type arg              type of file to import.  default: json (json,csv,tsv)
23   --file arg              file to import from; if not specified stdin is used
24   --drop                  drop collection first
25   --headerline            CSV,TSV only - use first line as headers
26   --upsert                insert or update objects that already exist
27   --upsertFields arg      comma-separated fields for the query part of the
28                           upsert. You should make sure this is indexed
29   --stopOnError           stop importing at first error rather than continuing
30   --jsonArray             load a json array, not one item per line. Currently
31                           limited to 4MB.

 1 mongoexport --help
 2 options:
 3   --help                  produce help message
 4   -v [ --verbose ]        be more verbose (include multiple times for more verbosity e.g. -vvvvv)
 5   -h [ --host ] arg       mongo host to connect to ( <set name>/s1,s2 for sets)
 6   --port arg              server port. Can also use --host hostname:port
 7   --ipv6                  enable IPv6 support (disabled by default)
 8   -u [ --username ] arg   username
 9   -p [ --password ] arg   password
10   --dbpath arg            directly access mongod database files in the given
11                           path, instead of connecting to a mongod  server -
12                           needs to lock the data directory, so cannot be used
13                           if a mongod is currently accessing the same path
14   --directoryperdb        if dbpath specified, each db is in a separate directory
15   -d [ --db ] arg         database to use
16   -c [ --collection ] arg collection to use (some commands)
17   -f [ --fields ] arg     comma separated list of field names e.g. -f name,age
18   --fieldFile arg         file with fields names - 1 per line
19   -q [ --query ] arg      query filter, as a JSON string
20   --csv                   export to csv instead of json
21   -o [ --out ] arg        output file; if not specified, stdout is used
22   --jsonArray             output to a json array rather than one object per line

1 mongo -u admin -p admin 192.168.0.197:27017/pagedb

 1 mongo --help
 2 MongoDB shell version: 1.8.3
 3 usage: mongo [options] [db address] [file names (ending in .js)]
 4 db address can be:
 5   foo                   foo database on local machine
 6   192.169.0.5/foo       foo database on 192.168.0.5 machine
 7   192.169.0.5:9999/foo  foo database on 192.168.0.5 machine on port 9999
 8 options:
 9   --shell               run the shell after executing files
10   --nodb                don‘t connect to mongod on startup - no ‘db address‘ 
11                         arg expected
12   --quiet               be less chatty
13   --port arg            port to connect to
14   --host arg            server to connect to
15   --eval arg            evaluate javascript
16   -u [ --username ] arg username for authentication
17   -p [ --password ] arg password for authentication
18   -h [ --help ]         show this usage information
19   --version             show version information
20   --verbose             increase verbosity
21   --ipv6                enable IPv6 support (disabled by default)

 1 > var x = new Mongo(‘192.168.0.197:27017‘)
 2 > var ydb = x.getDB(‘pagedb‘);
 3 > use ydb
 4 switched to db ydb
 5 > db
 6 ydb
 7 > ydb.page.findOne()
 8 {
 9         "_id" : ObjectId("4eded6a5bf3bfa0014000003"),
10         "content" : "巴黎是浪漫的城市，可是...",
11         "pubdate" : "2006-03-19",
12         "title" : "巴黎：从布鲁塞尔赶到巴黎",
13         "url" : "http://france.bytravel.cn/Scenery/528/cblsegdbl.html"
14 }

1 > var x = new Mongo(‘192.168.0.197:27017‘)
2 > var ydb = x.getDB(‘pagedb‘, ‘shirdrn‘, ‘(jkfFS$343$_\=\,.F@3‘);
3 > use ydb
4 switched to db ydb