# pg_dumpall > Extract a PostgreSQL database cluster into a script file or other archive file. > More information: . - Dump all databases: `pg_dumpall > {{path/to/file.sql}}` - Dump all databases using a specific username: `pg_dumpall {{[-U|--username]}} {{username}} > {{path/to/file.sql}}` - Same as above, customize host and port: `pg_dumpall -h {{host}} -p {{port}} > {{output_file.sql}}` - Dump only database data into an SQL-script file: `pg_dumpall {{[-a|--data-only]}} > {{path/to/file.sql}}` - Dump only schema (data definitions) into an SQL-script file: `pg_dumpall -s > {{output_file.sql}}`