shell脚本实现ssh-copy-id批量自动发送公钥到远程主机

需求

批量实现自动发送公钥到远程主机

环境

firewalld：关闭
selinux：关闭

实现方式

• sshpass命令
• shell调用expect命令
  

sshpass命令

#!/bin/bash
#
#********************************************************************
#author:      hechunping
#qq:        ×××
#date:       2019-11-07
#filename:     ssh-sshpass.sh
#url:        hexiaoshuai.blog.51cto.com
#description:    the test script
#copyright (c):   2019 all rights reserved
#********************************************************************
net=172.20.200
user=(root hechunping)
password=123456
ssh-keygen -t rsa -p '' -f ~/.ssh/id_rsa &> /dev/null
sed -i '/stricthostkeychecking/c stricthostkeychecking no' /etc/ssh/ssh_config
rpm -q sshpass &> /dev/null || yum -y install sshpass &> /dev/null
for i in {1..254} ; do
{
  sshpass -p $password ssh-copy-id -i ${user[0]}@${net}.${i} &> /dev/null
}&
done
wait

shell调用expect命令

#!/bin/bash
#
#********************************************************************
#author:      hechunping
#qq:        ×××
#date:       2019-11-07
#filename:     ssh-expect.sh
#url:        hexiaoshuai.blog.51cto.com
#description:    the test script
#copyright (c):   2019 all rights reserved
#********************************************************************
net=172.20.200
user=(root hechunping)
password=123456
ssh-keygen -t rsa -p '' -f ~/.ssh/id_rsa &> /dev/null
for i in {1..254} ; do
{
expect <<eof
spawn ssh-copy-id -i ${user[0]}@${net}.${i}
expect {
  "yes/no" { send "yes\n";exp_continue }
  "password" { send "${password}\n" }
}
expect eof
eof
}&
done
wait

总结

以上所述是小编给大家介绍的shell脚本实现ssh-copy-id批量自动发送公钥到远程主机，希望对大家有所帮助