Command
pg_dump -U username dbname > backup.sqlExplanation
Backs up a PostgreSQL database to a file using pg_dump.
Examples
Backup database to file
pg_dump -U postgres mydb > mydb_backup.sqlpg_dump -U username dbname > backup.sqlBacks up a PostgreSQL database to a file using pg_dump.
Backup database to file
pg_dump -U postgres mydb > mydb_backup.sql