#!/bin/sh
echo "1"
tar cvf /tmp/1 /u/j/u/junfeng/pgsql
echo "2"
tar cvf /tmp/2 /u/j/u/junfeng/
echo "3"
cat /tmp/1 /tmp/2 >/tmp/3
echo "4"
cat /tmp/3 /tmp/2 >/tmp/4
echo "5"
cat /tmp/4 /tmp/2 >/tmp/5
echo "6"
cat /tmp/5 /tmp/2 >/tmp/6
echo "7"
cat /tmp/6 /tmp/4 >/tmp/7
echo "flush"
cat /tmp/7 /tmp/4 >/tmp/flush
rm -f /tmp/1 /tmp/2 /tmp/7 /tmp/4 /tmp/5 /tmp/6 
