关于expect使用ssh的问题

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原创最新推荐文章于 2026-03-23 00:16:18 发布 2.4k 阅读 AI 写同款· GEO 优化 ›

shell脚本之对于非ssh expect 免密登陆问题背景：一般为了安全hadoop生产集群与公司其他服务器不能ping,不能互相ssh免密登录的。绝大多数是hadoop集群服务器可以有账号密码可以登录到其他服务器，但其他服务器，不可以登录到公司hadoop集群服务器。业务需要从一台非业务服务器上scp拉取数据，这时用到 expect远程登录先看有无安装 rpm -qa |grep expect 有略过此步骤，没有安装 yum ins... 阅读详情

spawn bash -c "ssh -t root@$argv"
expect "* (yes/no)*"
send "yes/r"
expect -timeout 1
expect "* password:*"
send "123456/r"
expect -timeout 5
send "export DATE=`date +%F-%R`/r"
expect -timeout 1
send "export IP=`ifconfig |grep /"inet addr/"|grep /"10/"|cut -d ':' -f2|cut -d ' ' -f1`/r"
expect -timeout 1
send "tar cvf /root//$IP--/$DATE.tgz /root/workspace/r"
expect -timeout 1
send "scp -r /root/*.tgz serverIP:/root/back/r"
expect "* (yes/no)*"
send "yes/r"
expect -timeout 1
expect "* password:*"
send "123456/r"
expect eof

用个笨方法

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CODE:

spawn ssh -t root@$argv
expect {
"* (yes/no)*" { send "yes/r" ; set sshkey 1}
"* password:*" { send "123456/r" }
if $sshkey!=1 {
expect "* password:*"
send "123456/r" }