#!/bin/bash

02.echo "New system configuration"
03.sleep 1
04.echo "Environment RHEL6.3"  
05.sleep 1
06.echo "The kernel version configuration!"
07.sleep 1
08.echo "Designed by www.rsyslog.org http://dreamfire.blog.51cto.com"
09.sleep 1
10.input_fun() //定义一个可以重复输入的函数(空值回车情况下 也可用参考http://dreamfire.blog.51cto.com/418026/1152672)
11.{
12.        OUTPUT_VAR=$1
13.        INPUT_VAR=""
14.                while [ -z $INPUT_VAR ];do
15.                        read -p "$OUTPUT_VAR" INPUT_VAR
16.                done
17.        echo $INPUT_VAR
18.}
19.
20.input_again() //定义网络参数函数,交互式读取输入.
21.{
22.MYHOSTNAME=$( input_fun "Please input the hostname: ")
23.DOMAINNAME=$( input_fun "Please intput the domainname(rsyslog.org): ")  
24.CARD_TYPE=$( input_fun "Please input card type(eth0): ")  
25.IPADDR=$( input_fun "Please input ipaddress(192.168.100.1): ")  
26.NETMASK=$( input_fun "Please input netmask(255.255.255.0): ")  
27.GATEWAY=$( input_fun "Please input gateway(192.168.100.1): ")  
28.MYDNS1=$( input_fun "Please input DNS1(192.168.100.102): ")  
29.MYDNS2=$( input_fun "Please input DNS2(192.168.100.103): ")