make COMMAND [params ...]
 
commands:
    import source=</path/to/dump.zip or http://example.com/url/to/dump.sql.gz> [user password db host  binary] 
    backup filepath=</path/to/backup.sql.gz> [user password host db ignore=<"table1;table2"> nice ionice] 
    query query=<SELECT 1> [user password db host] 
    query-silent query=<SELECT 1> [user password db host]
    check-ready [user password db host max_try wait_seconds delay_seconds]  
    
default params values:
    user $POSTGRES_USER
    password $POSTGRES_PASSWORD
    db $POSTGRES_DB
    host localhost
    max_try 1
    wait_seconds 1
    delay_seconds 0
    ignore ""
    binary 0
    nice 10
    ionice 7