How to run pg_dump/pg_dumpall command on Linux?

Question

Hello everyone i am try to create backup in postgres through dump. when i run the command through command line it wants password when i give the password it will give some error

pg_dump: [archiver (db)] connection to database "nsdgpkidb" failed: FATAL:  password authentication failed for user "root" 

if any one have some valuable time please help me thanks.

Pattipattie

Answer 1

Such kind of questions are better to ask on ServerFault. You have to provide pg_dump with the valid postgresql account via command line parameter:

pg_dump -U postgres nsdgpkidb > file.sql

By default it assumes the current local user account (root). Another way is to change the current user and issue the command.

Mohsen

where will the dump file get saved? – Minx

@Minx > file.sql means file.sql in the current directory, or you can use full or relative path, like > /path/to/file/file.sql – Mohsen

@ArtemKoshelev server fault or DBA? ;) – Fugger

@Minx you can define the path absolute: pg_dump -U postgres name_of_BD > '/dir_to_backup/Class_international.sql' – Totem