mysqldump:tldr:d144e
The command "mysqldump --user ${user} --password --all-databases > ${filename-sql}" is used to perform a database backup using the "mysqldump" tool.
Here is the breakdown of each component in the command:
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"mysqldump" is a command-line utility provided by MySQL to create backups of databases.
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"--user ${user}" specifies the username to connect to the MySQL server. The value of the "${user}" variable should be replaced with an actual MySQL username.
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"--password" prompts for the password of the MySQL user specified in the previous flag. After entering the command, you will be prompted to enter the password.
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"--all-databases" instructs mysqldump to include all the databases present on the MySQL server in the backup. If you want to backup a specific database, you can replace this flag with the specific database name.
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The ">" symbol redirects the output of the mysqldump command to a file instead of displaying it on the console.
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"${filename-sql}" represents the name and path of the output file. The "${filename-sql}" variable should be replaced with the desired filename and location for the database backup file. The file will have a ".sql" extension, indicating it contains SQL statements.
Overall, this command will create a backup of all databases on the MySQL server, using the specified username and prompting for the password, and save it to the specified file.