pg_dumpall

Extract a PostgreSQL database cluster into a script file or other archive file. More information: https://www.postgresql.org/docs/current/app-pg-dumpall.html.

pg_dumpall > path/to/file.sql

pg_dumpall --username=username > path/to/file.sql

pg_dumpall -h host -p port > output_file.sql

pg_dumpall -Fc > output_file.dump

pg_dumpall --data-only > path/to/file.sql

pg_dumpall -s > output_file.sql