“permission denied” for pg_dump output file

Question

i used below command to backup my database

sudo -u user_name pg_dump dbName -f /home ..../someWhere/db.sql

but it gives me this :

pg_

Answer 1

Do it from psql command line like below

-bash-4.1$ pg_dump -Fp dbName -f /home ..../someWhere/db.sql &

-F selects the format of the output in which p is Output a plain-text SQL script file

and & at the end will run your backup in the background.