How to pass in password to pg_dump?

Question

I\'m trying to create a cronjob to back up my database every night before something catastrophic happens. It looks like this command should meet my needs:

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Answer 1

As detailed in this blog post , there are two ways to non interactively provide a password to PostgreSQL utilities such as the "pg_dump" command: using the ".pgpass" file or using the "PGPASSWORD" environment variable.