pg_restore:tldr:6f1e3

This command is used in PostgreSQL to restore a database from an archive file dump.

Here is a breakdown of the command:

• pg_dump is the command-line utility used to create a backup of a PostgreSQL database. It is used to generate an archive file containing the database's schema and data.
• -U ${username} specifies the username of the database user who has the necessary privileges to perform the restore operation. ${username} is a placeholder that should be replaced with the actual username.
• -d ${db_name} specifies the name of the database where the restore operation should be performed. ${db_name} is a placeholder that should be replaced with the actual database name.
• ${archive_file-dump} is the path to the archive file that contains the dump of the database. This is the file that will be used to restore the database.

To use this command, you need to have PostgreSQL installed on your system and have the necessary permissions to perform database restoration. The command will connect to the specified database, drop the existing schema, and then restore the schema and data from the archive file dump.