#!/bin/bash  
DATE=$(date '+%Y%m%d');
PG_ARCHIVE=/var/lib/pgsql/9.5/data/pg_arch
PG_DATA=/var/lib/pgsql/9.5/data
PG_HOME=/var/lib/pgsql

#START BACKUP
echo "START BACKUP..............." 
psql postgres -c "select pg_start_backup('hot_back')"
cd $PG_HOME
tar zcvf ${PG_HOME}/pg_hotbackup_$DATE.tar.gz $PG_DATA
psql postgres -c "select pg_stop_backup()"
psql postgres -c "select pg_switch_xlog()"
psql postgres -c "select pg_current_xlog_location()"
echo "BACKUP  END"