How Do I Backup My PostgreSQL Database with Cron?

Question

I can run commands like vacuumdb, pg_dump, and psql just fine in a script if I preface them like so:

/usr/bin/sudo -u postgres /usr/bin/pg_dump -Fc mydatabase &g         


        

Answer 1

Since you seem to have superuser rights anyway, you could put those commands into the crontab of the postgres user like so:

sudo su postgres
crontab -e

and then put the pg_dump/vacuumdb commands there.