批量添加ssh认证公钥的脚本，有利于大批量管理服务器哦。

如果你的服务器的ip是有一定范围的，比如是 192.168.0.1--192.168.0.100之间，而且他们的root用户密码相同，都为redhat，那么你可以用下面的脚本快速的部署信任关系。

#!/bin/bash

# auto copy publick key to ssh server,but you must create the rsa public key first!

# auth: jarson@gmail.com

# date: 20100408

# include a  expect script

# see the log file  /tmp/test.log

cat>/tmp/auto.tcl<<eof

#!/usr/bin/expect -f

set timeout -1

#set user [lrange $argv 1 1]

#set password [lrange $argv 2 2]

set ipaddr [lrange \$argv 0 0]

spawn ssh-copy-id -i /root/.ssh/id_rsa.pub root@\$ipaddr

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

send "yes\r"

expect "*?assword:"

send "redhat\r"

expect eof

eof

chmod 755 /tmp/auto.tcl

rm -f /root/.ssh/known_hosts

for i in {1..100}

do

if

ping -c2 192.168.0.$i &>/dev/null

then

/tmp/auto.tcl 192.168.0.$i &>/dev/null

echo "********192.168.0.$i**************">>/tmp/test.log

ssh 192.168.0.$i ifconfig eth0|grep 'inet addr:'|cut -f2 -d:|cut -f1 -d' ' >>/tmp/test.log

else

echo "the server 192.168.0.$i is't exsit">>/tmp/down.log

fi

done

建立后，执行这个脚本就可以了

如果是你的服务器ip,root密码无规律咋办呢？这个时候可以这么做，建立一个文件 server.txt 内如格式如下

ip地址:root密码

比如

202.19.1.3：qwz234

201.19.1.2: de123s

...

这个时候可以这么来做

#!/bin/bash

# auto copy publick key to ssh server,but you must create the rsa public key first!

# auth: jarson@gmail.com

# date: 20100408

# include a  expect expect script

# see the log file  /tmp/test.log

cat>/tmp/auto.tcl<<eof

#!/usr/bin/expect -f

set timeout -1

#set user [lrange $argv 2 2]

set password [lrange \$argv 1 1]

set ipaddr [lrange \$argv 0 0]

spawn ssh-copy-id -i /root/.ssh/id_rsa.pub root@\$ipaddr

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

send "yes\r"

expect "*?assword:"

send "\$password\r"

expect eof

eof

chmod 755 /tmp/auto.tcl

rm -f /root/.ssh/known_hosts

for i in `cat /server.txt`

do

IP=`echo $i|cut -f1 -d:`

PASS=`echo $i|cut -f2 -d:`

if

ping -c2 $IP &>/dev/null

then

/tmp/auto.tcl $IP $PASS &>/dev/null

echo "********$IP**************">>/tmp/test.log

ssh $IP ifconfig eth0|grep 'inet addr:'|cut -f2 -d:|cut -f1 -d' ' >>/tmp/test.log

else

echo "the server $IP is down">>/tmp/down.log

fi

done