Универсальный скрипт резервного копирования Postgres, архивирует все базы сервера баз данных

Скрипт тестировался на PostgreSQL 10.5 CentOS Linux release 7.6.1810

Текст скрипта:

#!/bin/sh
#Export postgres connection parameters
source /usr/local/etc/pgsql_funcs.conf

DATA=`date +"%Y-%m-%d_%H-%M"`
DATEFMT="%Y-%m-%d_%H-%M-%S"
GETDB="select datname from pg_database where datistemplate = ‘f’;"
SERVICELOG="/home/postgres/BACKUP/service.log"
BACKUPPATH="/home/postgres/BACKUP/files"
COUNT=0
TOTALCOUNT=0

echo "Start execution of backup databases script at ${DATA}" #>> ${SERVICELOG}

RESULT=$(/usr/bin/psql -h $PGHOST -p $PGPORT -U $PGROLE -d $PGDATABASE -t -c "${GETDB}" 2>&1)
if [ $? -ne 0 ]; then
    echo "${RESULT}"
    exit
fi

for dbname in ${RESULT}; do
  TOTALCOUNT=$[$TOTALCOUNT +1]
  echo "`date +${DATEFMT}` Start backup ${dbname}" #>> ${SERVICELOG}
  /usr/bin/pg_dump -U $PGROLE ${dbname}| pigz > $BACKUPPATH/$DATA-${dbname}.sql.gz 2>&1
  if [ $? -ne 0 ]; then
    echo "Failed to backup ${dbname}" #>> ${SERVICELOG}
    continue
  else  
    echo "`date +${DATEFMT}` End backup ${dbname}" #>> ${SERVICELOG}
    COUNT=$[$COUNT +1]
  fi  
done    

/usr/bin/find $BACKUPPATH -type f -mtime +20 -exec echo "Removing outdated backup file: {}" ; -exec rm -f {} ;

echo "End execution of backup databases script at `date +${DATEFMT}`" #>> ${SERVICELOG}
echo "${COUNT} of ${TOTALCOUNT} databases backed up" #>> ${SERVICELOG}