pgsql-general-owner@postgresql.org wrote on 17/03/2014 12:50:20:
> From: José Pedro Santos <zpsantos1@hotmail.com> > To: Postgres Ajuda <pgsql-general@postgresql.org>, > Date: 17/03/2014 12:56 > Subject: [GENERAL] Dump Database > Sent by: pgsql-general-owner@postgresql.org > > Dear all, > > I'm trying to dump my database using the following command after I > enter as su postgres: > > pg_dump - U postgres mydb -f mydb.sql > > ... but I'm always having the following message: > > pg_dump [archiver] Could not open output file "mydb.sql" : Permission denied > > I try to use the same statement using su.. but I didn't manage. Can > someone give me a help? > > I'm using Ubuntu 12.04 LTS and Postgres 9.1. > > Kind Regards, > José Santos
The assumption here is that you're in a directory where you do not have permissions.
try: # cd # pg_dump -f mydb.sql -U postgres mydb
It also appears that you have a space between "-" and "U", make sure that it appears: "-U".
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