page contents

shell脚本编程之expect

expect尤其适用于需要对多台服务器执行相同操作的环境中，可以大大提高系统管理人员的工作效率。

attachments-2020-04-NqDD9LJk5e9fde5c82c31.jpg

一.expect概述


1.expect介绍

　　expect 是由Don Libes基于Tcl（ Tool Command Language ）语言开发的，主要应用于自动化交互式操作的场景，借助Expect处理交互的命令，可以将交互过程如：ssh登录，ftp登录等写在一个脚本上，使之自动化完成。尤其适用于需要对多台服务器执行相同操作的环境中，可以大大提高系统管理人员的工作效率。


2.expect命令

expect 语法：
　　expect [选项] [ -c cmds ] [ [ -[f|b] ] cmdfile ] [ args ]

常用选项
　　-c：从命令行执行expect脚本，默认expect是交互地执行的
　　　　示例：expect -c 'expect "\n" {send "pressed enter\n"}
　　-d：可以输出输出调试信息
　　　　示例：expect -d ssh.exp

expect中相关命令
　　spawn：
　　　　启动新的进程
　　send：
　　　　用于向进程发送字符串
　　expect：
　　　　从进程接收字符串
　　interact：
　　　　允许用户交互
　　exp_continue 
　　　　匹配多个字符串在执行动作后加此命令


3.安装expect软件包

[root@node101.yinzhengjie.org.cn ~]# yum info expect
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.huaweicloud.com
 * epel: mirrors.aliyun.com
 * extras: mirrors.huaweicloud.com
 * updates: mirrors.aliyun.com
Available Packages
Name        : expect
Arch        : x86_64
Version     : 5.45
Release     : 14.el7_1
Size        : 262 k
Repo        : base/7/x86_64
Summary     : A program-script interaction and testing utility
URL         : http://expect.nist.gov/
License     : Public Domain
Description : Expect is a tcl application for automating and testing
            : interactive applications such as telnet, ftp, passwd, fsck,
            : rlogin, tip, etc. Expect makes it easy for a script to
            : control another program and interact with it.
            : 
            : This package contains expect and some scripts that use it.

[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# yum info expect　　　　　　#查看expect软件包相关信息


[root@node101.yinzhengjie.org.cn ~]# yum -y install expect
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink                                                                                                                                 | 8.6 kB  00:00:00     
 * base: mirrors.aliyun.com
 * epel: mirrors.aliyun.com
 * extras: ap.stykers.moe
 * updates: mirrors.aliyun.com
base                                                                                                                                                 | 3.6 kB  00:00:00     
epel                                                                                                                                                 | 5.3 kB  00:00:00     
extras                                                                                                                                               | 2.9 kB  00:00:00     
updates                                                                                                                                              | 2.9 kB  00:00:00     
(1/2): epel/x86_64/updateinfo                                                                                                                        | 1.0 MB  00:00:06     
(2/2): epel/x86_64/primary_db                                                                                                                        | 6.9 MB  00:00:14     
Resolving Dependencies
--> Running transaction check
---> Package expect.x86_64 0:5.45-14.el7_1 will be installed
--> Processing Dependency: libtcl8.5.so()(64bit) for package: expect-5.45-14.el7_1.x86_64
--> Running transaction check
---> Package tcl.x86_64 1:8.5.13-8.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

============================================================================================================================================================================
 Package                                Arch                                   Version                                           Repository                            Size
============================================================================================================================================================================
Installing:
 expect                                 x86_64                                 5.45-14.el7_1                                     base                                 262 k
Installing for dependencies:
 tcl                                    x86_64                                 1:8.5.13-8.el7                                    base                                 1.9 M

Transaction Summary
============================================================================================================================================================================
Install  1 Package (+1 Dependent package)

Total download size: 2.1 M
Installed size: 4.9 M
Downloading packages:
(1/2): expect-5.45-14.el7_1.x86_64.rpm                                                                                                               | 262 kB  00:00:06     
(2/2): tcl-8.5.13-8.el7.x86_64.rpm                                                                                                                   | 1.9 MB  00:00:07     
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                       294 kB/s | 2.1 MB  00:00:07     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 1:tcl-8.5.13-8.el7.x86_64                                                                                                                                1/2 
  Installing : expect-5.45-14.el7_1.x86_64                                                                                                                              2/2 
  Verifying  : 1:tcl-8.5.13-8.el7.x86_64                                                                                                                                1/2 
  Verifying  : expect-5.45-14.el7_1.x86_64                                                                                                                              2/2 

Installed:
  expect.x86_64 0:5.45-14.el7_1                                                                                                                                             

Dependency Installed:
  tcl.x86_64 1:8.5.13-8.el7                                                                                                                                                 

Complete!
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# yum -y install expect　　 #安装expect工具


二.expect最常用的语法(tcl语言:模式-动作)


1.expect的单分支语法

[root@node101.yinzhengjie.org.cn ~]# expect 
expect1.1> expect "hi" {send "say hi\n"}　　　　　　#捕捉用户输入的"hi",然后给用户发送"say hi\n"
hi　　　　#这一行是我输入的，由于被我上面定义的语句捕捉到了，下面一行的输出信息就是我之前自定义的字符串信息。
say hi
expect1.2> exit　　　　#如果不想使用该程序了可以输入"exit"来正常退出交互式界面
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]#


2.expect的多分支语法

[root@node101.yinzhengjie.org.cn ~]# expect 　　　　　 
expect1.1> expect "hi" {send "say hi\n"}\
+> "bye" {send "byebye\n"}
bye
byebye
expect1.2> exit
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]#
[root@node101.yinzhengjie.org.cn ~]# expect           #匹配hi,hello,bye任意字符串时，执行相应输出。上面的写法和下面的写法功能是相同的。
expect1.1> expect {
+> "hi" {send "You said hi\n"}
+> "hehe" {send "hehe yourself\n"}
+> "bye" {send "Good bye\n"}
+> }
bye
Good bye
expect1.2> 
expect1.2> exit
[root@node101.yinzhengjie.org.cn ~]#


三.expect脚本案例实战


1.spawn(启动新的进程)案例

[root@node101.yinzhengjie.org.cn ~]# ll .ssh/
total 16
-rw-------. 1 root root  413 Jul  9 10:27 authorized_keys
-rw-------. 1 root root 1675 Jul  9 10:27 id_rsa
-rw-r--r--. 1 root root  413 Jul  9 10:27 id_rsa.pub
-rw-r--r--. 1 root root 1608 Jul  9 10:28 known_hosts
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# rm -rf .ssh
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ll /etc/issue
-rw-r--r--. 1 root root 23 Nov 23  2018 /etc/issue
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ll backup/
total 0
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# cat shell/scp_expect.sh
#!/usr/bin/expect　　　　　#注意，这一行需要写expect命令的执行路径
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-29
#FileName：        shell/scp_expect.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

spawn scp /etc/issue root@172.30.1.101:/root/backup

expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "yinzhengjie\n" }
}

expect eof
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# chmod +x shell/scp_expect.sh　　　　#添加执行权限
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ./shell/scp_expect.sh 　　　　　　　　#执行脚本后,我们发现无需像之前那样手动输出"yes"和密码啦~取而代之的是脚本帮咱们干活了。
spawn scp /etc/issue root@172.30.1.101:/root/backup
The authenticity of host '172.30.1.101 (172.30.1.101)' can't be established.
ECDSA key fingerprint is SHA256:KEchoZnVBkijeoWfG2nvx2ptthsXv7IjkxIJYule57g.
ECDSA key fingerprint is MD5:52:c8:f5:6e:5f:cf:44:ec:c4:11:60:d2:d0:31:3c:da.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '172.30.1.101' (ECDSA) to the list of known hosts.
root@172.30.1.101's password: 
issue                                                                                                                                     100%   23    38.2KB/s   00:00    
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ll backup
total 4
-rw-r--r-- 1 root root 23 Nov 29 19:21 issue
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/scp_expect.sh


2.interact(允许用户交互)案例

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect1.sh 
#!/usr/bin/expect
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-29
#FileName：        shell/scp_expect.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

spawn ssh yinzhengjie@172.30.1.101

expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "yinzhengjie\n" }
}

interact
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ./shell/ssh_expect1.sh 
spawn ssh yinzhengjie@172.30.1.101
yinzhengjie@172.30.1.101's password: 
Last login: Sat Nov 30 17:05:32 2019 from 172.30.1.101
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ who
yinzhengjie pts/1        2019-11-30 17:06 (172.30.1.101)
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ exit 
logout
Connection to 172.30.1.101 closed.
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect1.sh


3.变量使用案例

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect2.sh 
#!/usr/bin/expect
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-29
#FileName：        shell/scp_expect.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

set host 172.30.1.101
set user yinzhengjie
set password yinzhengjie

spawn ssh ${user}@${host}

expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "${password}\n" }
}

interact
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ./shell/ssh_expect2.sh 
spawn ssh yinzhengjie@172.30.1.101
yinzhengjie@172.30.1.101's password: 
Last login: Sat Nov 30 17:09:58 2019 from 172.30.1.101
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ whoami 
yinzhengjie
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ exit 
logout
Connection to 172.30.1.101 closed.
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect2.sh


4.位置参数案例

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect3.sh 
#!/usr/bin/expect
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-29
#FileName：        shell/scp_expect.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

set host [lindex $argv 0]
set user [lindex $argv 1]
set password [lindex $argv 2]

spawn ssh ${user}@${host}

expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "${password}\n" }
}

interact
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ./shell/ssh_expect3.sh 172.30.1.101 yinzhengjie yinzhengjie
spawn ssh yinzhengjie@172.30.1.101
yinzhengjie@172.30.1.101's password: 
Last login: Sat Nov 30 17:10:27 2019 from 172.30.1.101
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ whoami 
yinzhengjie
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ 
[yinzhengjie@node101.yinzhengjie.org.cn ~]$ exit 
logout
Connection to 172.30.1.101 closed.
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect3.sh


5.登录后执行多个命令案例

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect4.sh 
#!/usr/bin/expect
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-29
#FileName：        shell/scp_expect.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

set host [lindex $argv 0]
set user [lindex $argv 1]
set password [lindex $argv 2]
set createuser [lindex $argv 3]
set createpasswd [lindex $argv 4]

spawn ssh ${user}@${host}

expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "${password}\n" }
}

expect "]#" { send "useradd ${createuser}\n" }
expect "]#" { send "echo ${createpasswd} |passwd --stdin ${createuser}\n" }
expect "]#" { send "who\n" }
send "exit\n"
expect eof
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# id jason
id: jason: no such user
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# ./shell/ssh_expect4.sh 172.30.1.101 root yinzhengjie jason 123456
spawn ssh root@172.30.1.101
root@172.30.1.101's password: 
Last login: Sat Nov 30 17:23:11 2019 from 172.30.1.101
[root@node101.yinzhengjie.org.cn ~]# useradd jason
[root@node101.yinzhengjie.org.cn ~]# echo 123456 |passwd --stdin jason
Changing password for user jason.
passwd: all authentication tokens updated successfully.
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/1        2019-11-30 17:27 (172.30.1.101)
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# exit
logout
Connection to 172.30.1.101 closed.
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# id jason
uid=1049(jason) gid=1049(jason) groups=1049(jason)
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect4.sh


6.shell脚本调用expect

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect5.sh  
#!/bin/bash
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-30
#FileName：        shell/ssh_expect5.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

ip=$1
user=$2
password=$3

expect <<EOF
set timeout 10
spawn ssh $user@$ip
expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "$password\n" }
}

expect "]#" { send "useradd jason2019\n" }
expect "]#" { send "echo yinzhengjie |passwd --stdin jason2019\n" }
expect "]#" { send "who\n" }
expect "]#" { send "exit\n" }
expect eof
EOF
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# id jason2019
id: jason2019: no such user
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# bash shell/ssh_expect5.sh 172.30.1.101 root yinzhengjie
spawn ssh root@172.30.1.101
root@172.30.1.101's password: 
Last login: Sat Nov 30 17:27:57 2019 from 172.30.1.101
[root@node101.yinzhengjie.org.cn ~]# useradd jason2019
[root@node101.yinzhengjie.org.cn ~]# echo yinzhengjie |passwd --stdin jason2019
Changing password for user jason2019.
passwd: all authentication tokens updated successfully.
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/1        2019-11-30 17:38 (172.30.1.101)
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# exit
logout
Connection to 172.30.1.101 closed.
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# id jason2019
uid=1050(jason2019) gid=1050(jason2019) groups=1050(jason2019)
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect5.sh


7.模拟给集群批量创建用户的脚本

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect6.sh 
#!/bin/bash
#
#********************************************************************
#Author:        yinzhengjie
#QQ:             1053419035
#Date:             2019-11-30
#FileName：        shell/ssh_expect5.sh
#URL:             http://www.cnblogs.com/yinzhengjie
#Description：        The test script
#Copyright notice:     original works, no reprint! Otherwise, legal liability will be investigated.
#********************************************************************

while read ip ;do
user=root
password=yinzhengjie

expect <<EOF
set timeout 30
spawn ssh $user@$ip
expect {
    "yes/no" { send "yes\n";exp_continue }
    "password" { send "$password\n" }
}

expect "]#" { send "useradd hadoop\n" }
expect "]#" { send "echo yinzhengjie |passwd --stdin hadoop\n" }
expect "]#" { send "who\n" }
expect "]#" { send "exit\n" }
expect eof
EOF
done < /root/shell/iplist.txt
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# cat shell/iplist.txt 　　　　　　#咱们这里定义了需要连接集群的主机IP
172.30.1.101
172.30.1.102
172.30.1.103
172.30.1.104
172.30.1.105
172.30.1.106
172.30.1.107
172.30.1.108
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# bash shell/ssh_expect6.sh 　　　　　　#执行脚本后发现会有很多输出信息，由于我试验的时候之开机了172.30.1.101这台虚拟机，其它虚拟机全部关机了，结果脚本只在开机的虚拟机中执行成功啦，其它主机报错提示找不到主机路由。
spawn ssh root@172.30.1.101
root@172.30.1.101's password: 
Last login: Sat Nov 30 17:38:48 2019 from 172.30.1.101
[root@node101.yinzhengjie.org.cn ~]# useradd hadoop
[root@node101.yinzhengjie.org.cn ~]# echo yinzhengjie |passwd --stdin hadoop
Changing password for user hadoop.
passwd: all authentication tokens updated successfully.
[root@node101.yinzhengjie.org.cn ~]# who
root     pts/1        2019-11-30 17:53 (172.30.1.101)
root     pts/3        2019-11-29 08:24 (172.30.1.254)
root     pts/2        2019-11-29 08:24 (172.30.1.254)
[root@node101.yinzhengjie.org.cn ~]# exit
logout
Connection to 172.30.1.101 closed.
spawn ssh root@172.30.1.102
ssh: connect to host 172.30.1.102 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.103
ssh: connect to host 172.30.1.103 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.104
ssh: connect to host 172.30.1.104 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.105
ssh: connect to host 172.30.1.105 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.106
ssh: connect to host 172.30.1.106 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.107
ssh: connect to host 172.30.1.107 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
spawn ssh root@172.30.1.108
ssh: connect to host 172.30.1.108 port 22: No route to host
expect: spawn id exp6 not open
    while executing
"expect "]#" { send "useradd hadoop\n" }"
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# id hadoop　　　　　　　　#很显然，只有172.30.1.101主机命令执行成功了。
uid=1051(hadoop) gid=1051(hadoop) groups=1051(hadoop)
[root@node101.yinzhengjie.org.cn ~]# 
[root@node101.yinzhengjie.org.cn ~]# 

[root@node101.yinzhengjie.org.cn ~]# cat shell/ssh_expect6.sh


attachments-2020-04-A8a7Ms8A5e9fdda4513e1.jpg

  • 发表于 2020-04-22 14:04
  • 阅读 ( 489 )

你可能感兴趣的文章

相关问题

0 条评论

请先 登录 后评论
Pack
Pack

1135 篇文章

作家榜 »

  1. 轩辕小不懂 2403 文章
  2. 小柒 1316 文章
  3. Pack 1135 文章
  4. Nen 576 文章
  5. 王昭君 209 文章
  6. 文双 71 文章
  7. 小威 64 文章
  8. Cara 36 文章

Pack

如果觉得我的文章对您有用，请随意打赏。你的支持将鼓励我继续创作！