I am moving away from Linode because I don't have the Linux sysadmin skills necessary; before I complete the transition to a more noob-friendly service, I need to download the contents of a MySQL database. Is there a way I can do this from the command line?
You can accomplish this using the mysqldump command-line function.
For example:
If it's an entire DB, then:
$ mysqldump -u [uname] -p[pass] db_name > db_backup.sql
If it's all DBs, then:
$ mysqldump -u [uname] -p[pass] --all-databases > all_db_backup.sql
If it's specific tables within a DB, then:
$ mysqldump -u [uname] -p[pass] db_name table1 table2 > table_backup.sql
You can even go as far as auto-compressing the output using gzip (if your DB is very big):
$ mysqldump -u [uname] -p[pass] db_name | gzip > db_backup.sql.gz
If you want to do this remotely and you have the access to the server in question, then the following would work (presuming the MySQL server is on port 3306):
$ mysqldump -P 3306 -h [ip_address] -u [uname] -p[pass] db_name > db_backup.sql
It should drop the .sql file in the folder you run the command-line from.
EDIT: As noted in comments, to avoid inclusion of your password in your command history, use the -p option without the password. It will prompt you for it and not record it.
mysqldump is what you are looking for.
In latest versions of mysql, at least in mine, you cannot put your pass in the command directly.
You have to run:
mysqldump -u [uname] -p db_name > db_backup.sql
and then it will ask for the password.
On windows you need to specify the mysql bin where the mysqldump.exe resides.
cd C:\xampp\mysql\bin
mysqldump -u[username] -p[password] --all-databases > C:\localhost.sql
save this into a text file such as backup.cmd
If downloading from remote server, here is a simple example:
mysqldump -h my.address.amazonaws.com -u my_username -p db_name > /home/username/db_backup_name.sql
The -p indicates you will enter a password, it does not relate to the db_name. After entering the command you will be prompted for the password. Type it in and press enter.
Open Command prompt, and directly type this command. Don't go inside mysql and then type this command.
mysqldump -u [uname] -p[pass] db_name > db_backup.sql
Go to MySQL installation directory and open cmd from there. Then execute the below command to get a backup of your database.
mysqldump -u root -p --add-drop-database --databases db> C:\db-dontdelete\db.sql
Just type mysqldump or mysqldump --help in your cmd will show how to use
Here is my cmd result
C:\Program Files\MySQL\MySQL Server 5.0\bin>mysqldump
Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
For more options, use mysqldump --help
If you are running the MySQL other than default port:
mysqldump.exe -u username -p -P PORT_NO database > backup.sql
Use this If you have the database with the name archiedb, use this mysql -p --databases archiedb > /home/database_backup.sql
Assuming this is linux, choose where the backup file will be saved.
来源：https://stackoverflow.com/questions/13484667/downloading-mysql-dump-from-command-line