1.expect.sh

expect的核心spawn  expect  send  set

 

spawn 调用要执行的命令

 expect 等待命令提示信息的出现，也就是捕捉用户输入的提示
send  发送需要交互的值，代替了用户手动输入的内容
set  设置变量值     
set timeout 300  300秒超时   如果300秒没有expect内容出现就退出
设置expect永不超时
 　　set timeout -1
interact   执行完成后保持交互状态。如果没有这一句登陆完成后会退出    
expect eof   这个一定要加，与spawn对应表示捕获终端输出信息终止，类似于if ...then ...fi

expect脚本必须以interact或expect eof结束，执行自动化任务通常expect eof就够了。

 

 

例：

TESTHOST=(
10.146.3.134
)
for ip in ${TESTHOST[@]};do
/usr/bin/expect << EOF
set timeout 10
spawn scp -p /root/sys_secrity.sh root@$ip:/root/
expect {
"(yes/no)" {send "yes\n"; exp_continue}
"password:" {send "passwd.....\n"}
}
expect eof
EOF
done
for ip in ${TESTHOST[@]};do
/usr/bin/expect << EOF
set timeout 10
spawn ssh root@$ip sh /root/sys_secrity.sh
expect {
"password:" {send "passwd.....\n"}
}
expect eof
EOF
done

1.远程登录到Server上；
2.将Server上的文件拉到当前主机；

 

TRANSFER_HOST=10.146.3.134
TRANSFER_SSH_PORT=2233
TRANSFER_USER=my_admin
TRANSFER_PASSWORD=mypassword
TRANSFER_PROJECT=/home/my_admin/deploy/transfer/*
DEPLOY_DIR=$(cd -P -- "$(dirname -- "$0")" && pwd -P)

fuction remote_transfer(){
echo "$1"
shift 1
expect << EOF
set timeout 30
spawn $@
expect {
"(yes/no)" {send "yes\r"; exp_continue}
"password:" {send "`echo $TRANSFER_PASSWORD |base64 -d`\r"}
}
expect eof
EOF
}

remote_transfer "Download files from remote JumpServer now ......" "scp -P ${TRANSFER_SSH_PORT} ${TRANSFER_USER}@${TRANSFER_HOST}:${TRANSFER_PROJECT} ${DEPLOY_DIR}"

 

例：密钥批量分发
copykey.sh

#!/bin/bash

# 判断id_rsa密钥文件是否存在
if [ ! -f ~/.ssh/id_rsa ];then
 ssh-keygen -t rsa -P "" -f ~/.ssh/id_rsa
else
 echo "id_rsa has created ..."
fi

#分发到各个节点,这里分发到host文件中的主机中.
while read line
  do
    user=`echo $line | cut -d " " -f 2`
    ip=`echo $line | cut -d " " -f 1`
    passwd=`echo $line | cut -d " " -f 3`
    
    expect <<EOF
      set timeout 10
      spawn ssh-copy-id $user@$ip
      expect {
        "yes/no" { send "yes\n";exp_continue }
        "password" { send "$passwd\n" }
      }
     expect "password" { send "$passwd\n" }
EOF
  done <  hosts