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pg_dumpall:tldr:b4bb9

pg_dumpall: Dump all databases using a specific username.
$ pg_dumpall --username=${username} > ${filename-sql}
try on your machine

The command pg_dumpall is a PostgreSQL utility that is used to create a plain-text dump of all the databases.

The --username=${username} flag specifies the username to be used for the database connection. ${username} is a placeholder that should be replaced with the actual username.

The > ${filename-sql} part is used for output redirection. It redirects the output of the pg_dumpall command to a file specified by ${filename-sql}. ${filename-sql} is another placeholder that should be replaced with the desired filename. The .sql extension is commonly used for SQL dump files.

So, when executing this command with the appropriate values substituted for ${username} and ${filename-sql}, it will create a SQL dump of all the databases, using the specified username for the connection, and save it to the specified file.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.
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