This command mean is backup data with plain .sql file to defined path output
$ pg_dump -x -h localhost -p 5432 -U bioskoponline -W -F p db_name > /path/to/file.sqlTo restore the generated plain sql file, you can only restore by psql command:
$ psql -h localhost -U postgres -p 54321 db_name < /path/to/file.sql