I like to make cron that will dump specific table from database for some reason im getting empty file in .gz any ideas why ?
mysqldump -u root -pp;qqee test_db category | gzip >/home/user/BKP-Category/backup_$( date +"\%Y_\%m_\%d" ).sql.gz
im getting this output after execution
Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases
OR mysqldump [OPTIONS] --system=[SYSTEMOPTIONS]]
For more options, use mysqldump --help
/usr/local/cpanel/bin/jailshell: q: command not found
the problem was password
-pp;qqee
because include special character ;
i should escape this like
-p'p;qqee'
This should work :
mysqldump -u root -p 'p;qqee' test_db category | gzip >/home/user/BKP-Category/backup_$( date +"\%Y_\%m_\%d" ).sql.gz
I am running the most recent version of MariaDB on a CentOS7 machine. I have two databases I need to back up. One for Postfix/Dovecot and Another for Wordpress. I have read a few guides and most just say that I should be good running
sudo mysqldump -h 127.0.0.1 -u root -p somepassword --all_databases > /tmp/backup.sql
Produces the output
Usage: mysqldump [OPTIONS] database [tables]
OR mysqldump [OPTIONS] --databases [OPTIONS] DB1 [DB2 DB3...]
OR mysqldump [OPTIONS] --all-databases [OPTIONS]
However, I suspect wordpress is complicating this process a bit because my CLI input is rewritten as
sudo mysqldump -h 127.0.0.1 -u root -p SomeIncorrectPassword find /var/www/somewordpressdir/wordpress/ -type d -exec chmod 755 {} \;! --all-databases > /tmp/backup.sql
I'm not sure why this is happening and I didn't come across anything similar. I am clearly missing something very basic here. What additional options do I need to provide?
I was reading an article that used the
--single_transaction
tag and this produced a different output
mysqldump: You can't use --single-transaction and --lock-all-tables at the same time.
it's not "--all_databases" with underscore but it's "--all-databases" with minus :-)
I've got a sh script to backup a database-server.
#!/bin/bash
mysqldump -u <username> -p<password> --all-databases --single-transaction --opt > /home/backup/h_157_2-1.sql
rsync -zrp --partial /home/backup/h_157_2-1.sql root#<server-ip>:/home/backup/H_157_2/
When I execute those two command on their own in the command line, they work as expected and I get a .sql file with content. But when I execute the script the file only contains this:
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
I already tried to change up the order of the options or leave out the --opt but the result was still the same. So what could cause the command to not work in the script?
I couldn't find a way to resolve the initial problem. Even with the help from Elzo Valugi in chat the result was still the same: Excecuted on command line the mysqldump worked finde. Excecuted in the script I got the same msg all the time. (see initial question).
To resolve it I built a workaround to dump every database on it's own.
#!/bin/sh
for dir in /var/lib/mysql/*/;
do
dir=${dir%*/}
mysqldump -u <user> -p<password> ${dir##*/} --single-transaction --opt > /home/backup/h_157_2_${dir##*/}.sql
rsync -zrp --partial /home/backup/h_157_2_${dir##*/}.sql root#<server-ip>:/home/backup/H_157_2/
done;
With this I loop through all the directorys in the mysql storage directory, cut them down to the dir-name and use that for the mysqldump. This puts every database in its own file. I think this could be resolved to combine them all to one, but for my needs I'm fine with different files.
While trying to backup my database using the command:
mysqldump -u root -p root --all-databases > /var/www/html/temp/karooka.sql
all I get is the following in the sql dump:
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
What could be the reason for this?
Don't specify the password in the command, use
mysqldump -u root -p --all-databases > /var/www/html/temp/karooka.sql
and enter the password when prompted.
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 db_name > db_backup.sql
If it's all DBs, then:
$ mysqldump -u [uname] -p --all-databases > all_db_backup.sql
If it's specific tables within a DB, then:
$ mysqldump -u [uname] -p 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 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 db_name > db_backup.sql
It should drop the .sql file in the folder you run the command-line from.
EDIT: Updated to avoid inclusion of passwords in CLI commands, use the -p option without the password. It will prompt you for it and not record it.
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.
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.
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
Don't go inside mysql, just open Command prompt and directly type this:
mysqldump -u [uname] -p[pass] db_name > db_backup.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
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
If you are running the MySQL other than default port:
mysqldump.exe -u username -p -P PORT_NO database > backup.sql
For those who wants to type password within the command line. It is possible but recommend to pass it inside quotes so that the special character won't cause any issue.
mysqldump -h'my.address.amazonaws.com' -u'my_username' -p'password' db_name > /path/backupname.sql
If you have the database named archiedb, use this:
mysql -p <password for the database> --databases archiedb > /home/database_backup.sql
Assuming this is Linux, choose where the backup file will be saved.
For some versions of MySQL try.
sudo mysqldump [database name] > db_backup.sql
mysqldump is another program (.exe file) in the MySQL directory
Program Files\MySQL\MySQL Server 8.0\bin
step 1: First you have to go to the path and open CMD from the folder.
step 2: Then type mysqldump in the CMD
it should display as follows
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
step 3: Then type this command
mysqldump -u [user_name] -p [database_name] > D:\db_dump.sql
Note :
you should provide an absolute path for the output file.
Here I provide D:\
For Windows users you can go to your mysql folder to run the command
e.g.
cd c:\wamp64\bin\mysql\mysql5.7.26\bin
mysqldump -u root -p databasename > dbname_dump.sql
Note: This step only comes after dumping your MySQL file(which most of the answers above have addressed).
It assumes that you have the said dump file in your remote server and now you want to bring it down to your local computer.
To download the dumped .sql file from your remote server to your local computer, do
scp -i YOUR_SSH_KEY your_username#IP:name_of_file.sql ./my_local_project_dir
#echo off
for /f "tokens=2 delims==" %%a in ('wmic OS Get localdatetime /value') do set "dt=%%a"
set "YY=%dt:~2,2%" & set "YYYY=%dt:~0,4%" & set "MM=%dt:~4,2%" & set "DD=%dt:~6,2%"
set "HH=%dt:~8,2%" & set "Min=%dt:~10,2%" & set "Sec=%dt:~12,2%"
set "datestamp=%YYYY%.%MM%.%DD%.%HH%.%Min%.%Sec%"
set drive=your backup folder
set databaseName=your databasename
set user="your database user"
set password="your database password"
subst Z: "C:\Program Files\7-Zip"
subst M: "D:\AppServ\MySQL\bin"
set zipFile="%drive%\%databaseName%-%datestamp%.zip"
set sqlFile="%drive%\%databaseName%-%datestamp%.sql"
M:\mysqldump.exe --user=%user% --password=%password% --result-file="%sqlFile%" --databases %databaseName%
#echo Mysql Backup Created
Z:\7z.exe a -tzip "%zipFile%" "%sqlFile%"
#echo File Compress End
del %sqlFile%
#echo Delete mysql file
pause;