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Label:One, Mongodump backup database 1, Common command grid 1 mongodump -h IP --port 端口 -u 用户名 -p 密码 -d 数据库 -o 文件存在路径 If there is no user who can remove-u and-P. If you export the native database, you can remove-H. If it is the default port, you can remove--port. If you want to export all databases, you can remove-D. 2. Export all databases 1 2 3 4 5 6 7 8 9 10 [[emailprotected] mongodb]# mongodump -h 127.0.0.1 -o /home/zhangy/mongodb/ con

One, Mongodump backup database 1, Common command grid Mongodump-h IP--port Port-u user name-p password-d database-o file existence path If there are no users who can remove-u and-P.If you export the database for this computer, you can remove-H.If it is the default port, you can remove the--port.If you want to export all databases, you can remove-D. 2, export all databases [Root@localhost mongodb]# mongodump-h 127.0.0.1-o/home/zhangy/mongodb/ connected to:127.0.0.1 Tue

/home/zhangy/mongodb/test/posts.bson Tue Dec 3 06:15:55.480 0 objects 。。。。。。。。。。。。。。。。。。。。 Omitted.......................... 3, export the specified databaseView copy print? [Email protected] mongodb]# mongodump-h 192.168.1.108-d tank-o/home/zhangy/mongodb/ Connected to:192.168.1.108 Tue Dec 3 06:11:41.618 database:tank To/home/zhangy/mongodb/tank Tue Dec 3 06:11:41.623 tank.syste

specified databaseView copy print? [Email protected] mongodb]# mongodump-h 192.168.1.108-d tank-o/home/zhangy/mongodb/ Connected to:192.168.1.108 Tue Dec 3 06:11:41.618 database:tank To/home/zhangy/mongodb/tank Tue Dec 3 06:11:41.623 tank.system.indexes To/home/zhangy/mongodb/tank/system.indexes.bson Tue Dec 3 06:11:41.623 2 objects Tue Dec 3

15-status Mode There are more than one kind of sub-categories in Starcraft. For example, a tank can be mounted, a gun can play doping, or even some passive ones. For example, after being sprayed with green liquid by the Queen of worms, the enemy's actions are slowing down.If we operate a soldier every time, like a tank, we need to use if to judge his status.CodeThere will be a lot of IF, else or swith.How

As mentioned above, the installation of coreseeksphinxmmsegmysql and so on will explain how to use it. One, coreseeksphinx start, there will be an extra port, and can log on like mysql, but not login mysql [root @ localhosttank] # mysql-h127.0.0.1-P9306 is not really connected to mysql, but connected to sphinxin As mentioned above, the installation of coreseek sphsf-mmseg mysql and so on will explain how to use it. 1. After coreseek sphek is started, an additional port is added and can be logged

, declares the method of producing automobiles.Car: Car realization class.Trunk: Truck implementation class.Iengine: Engine product interface, declares the method of producing the engine.Carengine: Car engine implementation class.Trunkengine: Truck engine implementation class.Itank: Fuel tank Product Interface, declare the method of producing tank.Cartank: Car fuel tank products.Trunktank: Truck fuel

is specific ),ExpThe corresponding type. The same rule applies to concept * or concept . Concept conversion. It is similar to performing conversions on the inheritance structure of classes. Refined concept can be implicitly converted to base concept. In turn, it must be performed explicitly and executed using the concept_cast operator. The concept must also be converted using concept_cast. Concept-based overload can also be executed at runtime to implement generalized dynamic-dispatch operati

> Db.adduser (' Tank ', ' test '); Add an administrator account { "user": "Tank", "readOnly": false, "pwd": "988432606980d0695e4f668f6bbc643a", "_id": ObjectId ("529e5d543b6a4608ac833429") } Third, open the user authority to start authentication [Root@localhost zhangy]# vim/etc/mongodb.conf //Remove the comments in front of Auth=true [root@localhost zhangy]#/etc/init.d/ Mongod

] zhangy]# MONGO MongoDB Shell version:2.4.6 Connecting To:tank > Use admin //Switch to admin database Switched to DB admin > Show Collections; System.indexes System.users //user table > Db.system.users.find (); //user table no data > Db.adduser (' tank ',' test '); //Add an Administrator account { "user": "Tank", "ReadOnly": false, "pwd": "988432606980d0695e4f668f

The three php functions used to parse the url are used to pass values through the url, which is an important means of passing values in php. Therefore, we often need to parse the parameters in the url. if we know the url passing parameter name, such as/index. php? Name = tank amp; sex = 1 # top we can use $ _ GET ['name'], $ _ GET ['sex'] to obtain the three php functions to parse the url Passing values through URLs is an important means of passing

// Add the prefix number-d, -- repeated, indicating the number of occurrences of the corresponding row in front of each row. // only duplicate rows-D are output, -- all-repeated // only outputs duplicate rows, but several rows output the number of-f, -- skip-fields = N //-f ignored segments, -f 1 ignores the first section-I, -- ignore-case // case insensitive-s, -- skip-chars = N // The root-f is a bit like, however,-s is ignored. When-s 5 is followed, the next five characters www.2cto.com-u, -

(Host), the pool has a lot of water (4GB of physical memory), there are 2 tanks (configured 2 VMS), the water tank has a certain capacity (configuration memory is 4GB), originally was empty (no boot).But now the tank 1 to raise fish, must put some water in so that the fish can survive (boot up). Minimum 1GB of memory is required. So the Tank 1 (VM1) to the pool

To:tank > Use admin//Switch to admin database Switched to DB admin > Show Collections; System.indexes System.users//user table > Db.system.users.find (); User table has no data > Db.adduser (' Tank ', ' test '); Add an Administrator account { "User": "TestUser", "ReadOnly": false, "pwd": "988432606980d0695e4f668f6bbc643a", "_id": ObjectId ("529e5d543b6a4608ac833429") } Third, open the user authority to start authenticat

// display the version information and exit it -z doesn't know how to use it. 3, test the text file uniqtestthis is a test this is a test I am tank I love tank this is a test whom have a try WhoM have a try you have a try I want to abroad those are good men we are good men IV, instance details [zhangy @ BlackGhost mytest] $ uniq-c uniqtest 3 this is a test 1 I am tank