I would like to know how I could migrate a postgresql database which is currently in a Windows operating system to Red Hat? I'm a beginner and I don't know where to start.
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pg_dump will create a file with the queries that are needed to recreate the state of your database. The file will look like a transaction or write ahead log.
pg_dump databasename > dumpfilename
pg_restore then will use this file to recreate your database. It's also useful to migrate to a newer database version
you could also use
psql newdatabasename < dumpfilename