shell实现两机之间互信__代码

来源：互联网发布：c语言不合法标识符编辑：程序博客网时间：2024/05/20 05:30

ssh连接远程主机时候询问密码，跟su、sudo命令的默认行为一样，是不从stdin读入数据的，据称是为安全考虑，但是有时候在脚本当中确实需要无人守值的登陆

参见auto_ssh.sh脚本实例：

#!/bin/bash# Destription: Creating a trust relationship between the host1-to-host2# parameters : sh auto_ssh.sh 10.71.115.155 Password# Auther     : xxxxxxx# Date       : 2015-2-2remote_ip=$1remote_Password=$2if [ $# -ne 2 ]; then    echo "Usage:"    echo "$0 remote_ip remote_Password "    exit 1fi#===========================keyfunction make_ssh_key(){  echo  y|ssh-keygen  -t  rsa -P '' -f /root/.ssh/id_rsa}#===========================scpfunction copy_key(){   expect -c "   set timeout 2     spawn scp -o StrictHostKeyChecking=no -r /root/.ssh/id_rsa.pub $remote_ip:/root/.ssh/$remote_ip        expect {           \"*Password*\" { send \"$remote_Password\r\" }        }         set timeout 3     expect eof      " }#===========================sshfunction authorized_keys(){    expect -c "     set timeout 2     spawn ssh -o StrictHostKeyChecking=no $remote_ip        expect {           \"*Password*\" { send \"$remote_Password\r\" }        }     set timeout 3     expect \"*:~*#\"     send \"cat /root/.ssh/$remote_ip >> /root/.ssh/authorized_keys\r\"     send \"rm /root/.ssh/$remote_ip\r\"     send \"exec  /usr/bin/ssh-agent $SHELL;ssh-add\r\"     set timeout 2     expect eof      " }# 正式开始运行脚本#----------------------------------------------if [ $# -le 1 ];then  usage;  exit 1;fi echo -e "\\033[1;32m `date +%Y-%m-%d\ %H:%M:%S` Now runing make_ssh_key  \\033[1;37m"make_ssh_key >/dev/null 2>&1;echo -e "\\033[1;32m `date +%Y-%m-%d\ %H:%M:%S` Now runing copy_key  \\033[1;37m"copy_key >/dev/null 2>&1;echo -e "\\033[1;32m `date +%Y-%m-%d\ %H:%M:%S` Now runing authorized_keys  \\033[1;37m"authorized_keys >/dev/null 2>&1;echo -e "\\033[1;32m =====================>Please ssh $remote_ip  \\033[1;37m"

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