sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list

sudo apt-get update

sudo apt-get install mongodb-10gen

wrr@ubuntu:~$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

[sudo] password for wrr:

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.vcN87sDcVF --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

gpg: requesting key 7F0CEB10 from hkp server keyserver.ubuntu.com

gpg: key 7F0CEB10: public key "Totally Legit Signing Key <mallory@example.org>" imported

gpg: key 7F0CEB10: public key "Richard Kreuter <richard@10gen.com>" imported

gpg: no ultimately trusted keys found

gpg: Total number processed: 2

gpg:               imported: 2  (RSA: 2)

wrr@ubuntu:~$ echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' | sudo tee /etc/apt/sources.list.d/mongodb.list

deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen

wrr@ubuntu:~$ sudo apt-get update

wrr@ubuntu:~$ sudo apt-get install mongodb-10gen

wrr@ubuntu:~$ mongo -version

MongoDB shell version: 2.4.14

wrr@ubuntu:~$ sudo rm /var/cache/apt/archives/lock

wrr@ubuntu:~$ sudo rm /var/lib/dpkg/lock

wrr@ubuntu:~$ sudo apt-get update

sudo service mongodb start

sudo service mongodb stop

wrr@ubuntu:~$ sudo service mongodb start

mongodb start/running, process 4004

wrr@ubuntu:~$ pgrep mongo -l

4004 mongod

wrr@ubuntu:~$ mongo

MongoDB shell version: 2.4.14

connecting to: test

Welcome to the MongoDB shell.

For interactive help, type "help".

For more comprehensive documentation, see

	http://docs.mongodb.org/

Questions? Try the support group

	http://groups.google.com/group/mongodb-user

Server has startup warnings:

Wed Dec 19 13:11:44.276 [initandlisten]

Wed Dec 19 13:11:44.276 [initandlisten] ** NOTE: This is a 32 bit MongoDB binary.

Wed Dec 19 13:11:44.276 [initandlisten] **       32 bit builds are limited to less than 2GB of data (or less with --journal).

Wed Dec 19 13:11:44.276 [initandlisten] **       Note that journaling defaults to off for 32 bit and is currently off.

Wed Dec 19 13:11:44.276 [initandlisten] **       See http://dochub.mongodb.org/core/32bit

Wed Dec 19 13:11:44.276 [initandlisten]

> show dbs

local	0.03125GB

wrr@ubuntu:~$ sudo service mongodb start

start: Job is already running: mongodb

wrr@ubuntu:~$ mongo

MongoDB shell version: 2.4.14

connecting to: test

Server has startup warnings:

Wed Dec 19 13:11:44.276 [initandlisten]

Wed Dec 19 13:11:44.276 [initandlisten] ** NOTE: This is a 32 bit MongoDB binary.

Wed Dec 19 13:11:44.276 [initandlisten] **       32 bit builds are limited to less than 2GB of data (or less with --journal).

Wed Dec 19 13:11:44.276 [initandlisten] **       Note that journaling defaults to off for 32 bit and is currently off.

Wed Dec 19 13:11:44.276 [initandlisten] **       See http://dochub.mongodb.org/core/32bit

Wed Dec 19 13:11:44.276 [initandlisten]

> show dbs

School	0.0625GB

local	0.03125GB

test	(empty)

> use School

switched to db School

> db.createCollection('teacher')

{ "ok" : 1 }

> db.createCollection('student')

{ "ok" : 1 }

> show collections

student

system.indexes

teacher

> db.student.insert({_id:2018001, sname:'zhangsan', sage:20})

> db.student.save({_id:2018002, sname:'lisi', sage:22})

> db.student.find()

{ "_id" : 2018001, "sname" : "zhangsan", "sage" : 20 }

{ "_id" : 2018002, "sname" : "lisi", "sage" : 22 }

> db.student.find({sname:'lisi'})

{ "_id" : 2018002, "sname" : "lisi", "sage" : 22 }

> db.student.find({},{sname:1, sage:1})

{ "_id" : 2018001, "sname" : "zhangsan", "sage" : 20 }

{ "_id" : 2018002, "sname" : "lisi", "sage" : 22 }

> db.student.find({sname:'zhangsan', sage:22})

> db.student.find({$or: [{sage: 22},{sage:25}]})

{ "_id" : 2018002, "sname" : "lisi", "sage" : 22 }

> db.student.find().pretty()

{ "_id" : 2018001, "sname" : "zhangsan", "sage" : 20 }

{ "_id" : 2018002, "sname" : "lisi", "sage" : 22 }

> db.student.update({sname:'lisi'},{$set:{sage:30}},false,true)

> db.student.find({sname:'lisi'})

{ "_id" : 2018002, "sname" : "lisi", "sage" : 30 }

> db.student.remove({sname:'zhangsan'})

> db.student.find()

{ "_id" : 2018002, "sname" : "lisi", "sage" : 30 }

> db.student.drop()

true

> show collections

system.indexes

teacher

exit