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+#!/bin/bash
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+# Simple script to backup postgresql databases
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+
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+# Parent backup directory
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+backup_parent_dir="/var/backups/postgresql"
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+
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+# MySQL settings
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+postgresql_user="root"
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+postgresql_password="ROOTPASSWD"
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+
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+# Read MySQL password from stdin if empty
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+# if [ -z "${mysql_password}" ]; then
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+# echo -n "Enter MySQL ${mysql_user} password: "
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+# read -s mysql_password
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+# echo
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+# fi
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+
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+# Check MySQL password
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+echo exit | mysql --user=${mysql_user} --password=${mysql_password} -B 2>/dev/null
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+if [ "$?" -gt 0 ]; then
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+ echo "MySQL ${mysql_user} password incorrect"
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+ exit 1
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+else
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+ echo "MySQL ${mysql_user} password correct."
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+fi
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+
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+# Create backup directory and set permissions
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+backup_date=`date +%Y_%m_%d_%H_%M`
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+backup_dir="${backup_parent_dir}/${backup_date}"
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+echo "Backup directory: ${backup_dir}"
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+mkdir -p "${backup_dir}"
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+chmod 644 "${backup_dir}"
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+
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+# Get postgresql databases
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+pgsql_databases=`echo 'show databases' | psql -h localhost -U postgres `
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+
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+# Backup and compress each database
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+for database in $mysql_databases
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+do
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+ if [ "${database}" == "information_schema" ] || [ "${database}" == "performance_schema" ]; then
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+ additional_mysqldump_params="--skip-lock-tables --compact --no-autocommit "
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+ else
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+ additional_mysqldump_params=""
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+ fi
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+ echo "Creating backup of \"${database}\" database"
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+ mysqldump ${additional_mysqldump_params} --user=${mysql_user} --password=${mysql_password} ${database} | gzip > "${backup_dir}/${database}.sql.gz"
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+ chmod 644 "${backup_dir}/${database}.sql.gz"
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+done
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+
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+# compress the folder
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+# tar -zcvf "${backup_dir}.tar.gz" "${backup_dir}"
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+# rm -rf "${backup_dir}"
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+
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+# Rotate backups
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+# Delete files older than 30 days
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+find $backup_parent_dir/ -type f -mtime +60 -delete;
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+# Delete empty directories
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+find $backup_parent_dir/ -type d -empty -delete;
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