Backup de todos os bancos de dados do seu servidor PostgreSQL

bac_all_db_pg.sh

#!/bin/bash
# Baseado em http://mig5.net/content/mysql-postgresql-all-databases-backup-script
# Rafael Bernard Rodrigues Araujo - 14/06/2012

today=$(date +%y%m%d)

# local dir where the backups go
myDir='/disk2/backup/pg'

# this is for PostgreSQL. If you don't need it, you
# could leave it here, but remove the 'backup_pgsql'
# function call at the end of the script

CMD_PSQL=/usr/local/pgsql/bin/psql
CMD_DUMP=/usr/local/pgsql/bin/pg_dump
arq_tar=''

function backup_pgsql {
        #Seleciona os bancos a serem copiados, eliminando os bancos de sistema
        for db in `psql -U postgres -tq -d template1 -c "select datname from pg_database where datname not in ('template1','template0','postgres')"`; do
                echo 'Iniciando o backup de '${db};
                arq_tar="${myDir}/${db}-${today}.tar";
                pg_dump -U postgres -F tar -f $arq_tar $db;
                gzip $arq_tar;
                echo 'Backup concluido';
        done;
}

backup_pgsql