分发系统介绍

1.安装命令：

[root@weixing01 ~]# yum install -y expect已加载插件：fastestmirrorbase                                                                       | 3.6 kB  00:00:00     epel/x86_64/metalink                                                       | 8.1 kB  00:00:00     epel

2.自动远程登录并执行：interact表示留在远程，不退出

[root@weixing01 sbin]# vi 1.expect#! /usr/bin/expectset host "192.168.188.129"set passwd "w914"spawn ssh root@$hostexpect {"yes/no" { send "yes\r"; exp_continue}"password:" { send "$passwd\r" }}interact

[root@weixing01 sbin]# chmod a+x 1.expect [root@weixing01 sbin]# ./1.expect spawn ssh root@192.168.188.129The authenticity of host '192.168.188.129 (192.168.188.129)' can't be established.ECDSA key fingerprint is SHA256:SL6ZOvpHHtEoro8AzeNBXqrM3mr2oXbPaSeXO+LQr1U.ECDSA key fingerprint is MD5:26:0e:7a:96:d6:3a:c5:57:57:2b:6d:1a:1e:42:c9:01.Are you sure you want to continue connecting (yes/no)? yesWarning: Permanently added '192.168.188.129' (ECDSA) to the list of known hosts.root@192.168.188.129's password: Last login: Wed Apr 25 21:24:50 2018 from 192.168.188.1

3.远程登录并执行命令，然后退出：

[root@weixing01 sbin]# vi 2.expect#!/usr/bin/expectset user "root"set passwd "w4"spawn ssh $user@192.168.188.129expect {"yes/no" { send "yes\r"; exp_continue}"password:" { send "$passwd\r" }}expect "]*"send "touch /tmp/12.txt\r"expect "]*"send "echo 1212 > /tmp/12.txt\r"expect "]*"send "exit\r"

[root@weixing01 sbin]# chmod a+x 2.expect [root@weixing01 sbin]# ./2.expect spawn ssh root@192.168.188.129root@192.168.188.129's password: Last login: Wed Apr 25 21:30:12 2018 from 192.168.188.130[root@weixing-02 ~]# touch /tmp/12.txt[root@weixing-02 ~]# echo 1212 > /tmp/12.txt

检测运行

[root@weixing-02 ~]# [root@weixing01 sbin]# ./1.expect spawn ssh root@192.168.188.129root@192.168.188.129's password: Last login: Wed Apr 25 21:36:07 2018 from 192.168.188.130[root@weixing-02 ~]# ls -l /tmp/12.txt -rw-r--r-- 1 root root 5 4月  25 21:36 /tmp/12.txt[root@weixing-02 ~]# cat /tmp/12.txt 1212

4.传递参数：

[root@weixing01 sbin]# vim 3.expect#!/usr/bin/expectset user [lindex $argv 0]set host [lindex $argv 1]set passwd "w4"set cm [lindex $argv 2]spawn ssh $user@$hostexpect {"yes/no" { send "yes\r"}"password:" { send "$passwd\r" }}expect "]*"send "$cm\r"expect "]*"send "exit\r"

[root@weixing01 sbin]# chmod a+x 3.expect [root@weixing01 sbin]# ./3.expect root 192.168.188.129 lsspawn ssh root@192.168.188.129root@192.168.188.129's password: Last login: Wed Apr 25 21:36:46 2018 from 192.168.188.130[root@weixing-02 ~]# ls1.txt  2.txt  anaconda-ks.cfg  a.txt  BugReport.txt  grep

执行多条命令

[root@weixing-02 ~]# [root@weixing01 sbin]# ./3.expect root 192.168.188.129 "ls;w;vmstat 1"spawn ssh root@192.168.188.129root@192.168.188.129's password: Last login: Wed Apr 25 21:44:15 2018 from 192.168.188.130[root@weixing-02 ~]# ls;w;vmstat 11.txt  2.txt  anaconda-ks.cfg  a.txt  BugReport.txt  grep 21:44:43 up 20 min,  2 users,  load average: 0.00, 0.01, 0.03USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHATroot     pts/0    192.168.188.1    21:24   17:31   0.02s  0.02s -bashroot     pts/1    192.168.188.130  21:44    0.00s  0.01s  0.00s wprocs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st 2  0      0 305904   2076 142944    0    0   102     9  111  162  0  1 99  0  0 0  0      0 305904   2076 142936    0    0     0     0   59   75  0  0 100  0  0 0  0      0 305904   2076 142936    0    0     0    16   68   80  0  0 100  0  0 0  0      0 305904   2076 142936    0    0     0     0   54   65  0  0 100  0  0