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

Instead of the following command: databases=psql -h localhost -U postgres -q -c "\l" | sed -n 4,/\eof/p | grep -v rows\) | grep -v template0 | grep -v template1 | awk {'print $1'}

You can use below: databases=psql -t -c "select datname from pg_database where datname not like 'template%';" | grep -v '^$'

The first one return '|' for template databases and an empty line.

The second one is cleaner.