linux自动交互工具expect，tcl安装和安装包，以及自动互信脚本

linux自动交互工具expect，tcl安装，以及自动互信脚本

工作中需要对几十台服务器做自动互信，无意中发现expect命令，研究一番。

在网上找了许多资料也没有安装成功，摸索着总算成功了。现分享如下。

expect命令在自动交互中很好用。

系统:虚拟机fedora14，32位。

[root@Linux ~]# uname -a

Linux Linux 2.6.35.6-45.fc14.i686 #1 SMP Mon Oct 18 23:56:17 UTC 2010 i686 i686 i386 GNU/Linux

安装包：

-rw-r--r--. 1 root root 525572 Aug 5 19:22 expect-5.43.0.tar.gz

-rw-r--r--. 1 root root 3641017 Jul 23 13:28 tcl8.4.16-src.tar.gz

安装步骤：

解压安装tcl：

tar zxvf tcl8.4.16-src.tar.gz;

[root@Linux ~]# cd tcl8.4.16/unix/

./configure

make

make install

cp tclUnixPort.h ../generic/

解压安装expect：

tar zxvf expect-5.43.0.tar.gz;

[root@Linux ~]# cd expect-5.43

[root@Linux expect-5.43]# ./configure --with-tcl=/usr/local/lib/ --with-tclinclude=/usr/log/tcl8.4.16/generic --with-x=no

上面配置这句是关键。

按照自己的tcl安装位置修改tcl=/usr/local/lib/

修改tclinclude=/root/tcl8.4.16/generic 这个目录是上面安装tcl文件夹的目录。

make

make install

--建立连接。

ln -s /usr/local/bin/expect /usr/bin/expect

--定义别名。使用ep代替expect。

echo "alias ep='expect'" >>/root/.bashrc

本步骤也在linux redhat5.5 64位系统中安装成功。

[root@HN509-AQ-WEB log]# uname -a

Linux HN509-AQ-WEB 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

安装包以及互信脚本详细地址：

http://download.csdn.net/detail/network__yang/5886409

有什么问题可以互相探讨。

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以下是自动互信脚本的思考步骤，仅供参考。互相学习。

先删除以前的密匙。

[root@HN509-AQ-WEB .ssh]# rm -f ~/.ssh/id_rsa*

没有重复文件的生成步骤：需要3次按键。

[root@HN509-AQ-WEB .ssh]# ssh-keygen -b 1024 -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa): 1

Enter passphrase (empty for no passphrase): 2

Enter same passphrase again: 3

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

f2:94:41:fb:1b:26:f5:8e:43:05:0e:e0:47:ce:b4:e4 root@HN509-AQ-WEB

如果以前已经生成，则需要4不按键。

[root@HN509-AQ-WEB .ssh]# ssh-keygen -b 1024 -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa):

/root/.ssh/id_rsa already exists.

Overwrite (y/n)? y

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

88:b3:05:27:c3:9f:1d:a7:92:88:4b:83:b6:44:db:b8 root@HN509-AQ-WEB

此脚本只适用于，/root/.ssh/文件夹下有id_rsa和id_rsa.pub文件的情况。

[root@HN509-AQ-WEB log]# cat tmp.sh

#!/usr/bin/expect

spawn ssh-keygen -b 1024 -t rsa

expect *key*

send \r

expect *verwrite*

send y\r

expect *passphrase*

send \r

expect *again:

send \r

interact

为了适应所有情况。建议执行前，在脚本中把id_rsa和id_rsa.pub文件删除。rm -f ~/.ssh/id_rsa*

先删除以前的密匙。

[root@HN509-AQ-WEB .ssh]# rm -f ~/.ssh/id_rsa*

没有重复文件的生成步骤：需要3次按键。

[root@HN509-AQ-WEB .ssh]# ssh-keygen -b 1024 -t rsa

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa): 1

Enter passphrase (empty for no passphrase): 2

Enter same passphrase again: 3

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

f2:94:41:fb:1b:26:f5:8e:43:05:0e:e0:47:ce:b4:e4 root@HN509-AQ-WEB

执行脚本。

[root@HN509-AQ-WEB log]# cat tmp.sh

#!/usr/bin/expect

spawn ssh-keygen -b 1024 -t rsa

expect *key*

send \r

expect *empty*

send \r

expect *again:

send \r

interact

传输公匙文件，这里是直接传输~/.ssh/到对端。由于对端可能没有~/.ssh/文件夹，还需要建，所以直接传输文件夹。

[root@HN509-AQ-WEB log]# cat tmp.10.7.1.29.sh

#!/usr/bin/expect

spawn scp -r /root/.ssh root@10.7.1.29:~/

expect *assword*

send \r

expect *assword*

send thinker\r

interact

如果是一台没有登陆过的服务器，在本机的know_hosts里面由于没有相应的公匙，所以会提示是否增加这个文件。

先删除本机的know_hosts文件，

rm -f ~/.ssh/known_hosts

修改自动脚本。

spawn scp -r /root/.ssh root@10.7.1.31:~/

The authenticity of host '10.7.1.31 (10.7.1.31)' can't be established.

RSA key fingerprint is 94:91:b1:7c:77:54:b9:72:c8:57:ca:c8:ec:20:7f:8c.

Are you sure you want to continue connecting (yes/no)?

Host key verification failed.

[root@HN509-AQ-WEB log]# cat tmp.10.7.1.29.sh

#!/usr/bin/expect

spawn scp -r /root/.ssh root@10.7.1.29:~/

expect *yes*

send yes\r

expect *assword*

send \r

expect *assword*

send thinker\r

interact