团队，使用Expect脚本，密码提示上什么也没有发生，并且我的远程命令未执行。我通过ssh代理，然后从那里执行Expect脚本以ssh到远程计算机并运行一些命令。
`#!/usr/bin/expect -f
set PROXY_PASSWORD $env(PROXY_PASSWORD)
set DOM0_PASSWORD $env(DOM0_PASSWORD)
set DOM0_USERNAME $env(DOM0_USERNAME)
spawn ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null $env(PROXY_USERNAME)@8.4.1.2
expect "password"
send -- "$PROXY_PASSWORD\r"
send "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null $DOM0_USERNAME@$dom0_host_ip 'export PATH=~/.local/bin:\$PATH; source ~/.bash_profile; source /etc/profile.d/lang.sh; sed -i 's/enabled=0/enabled=1/g' /etc/yum.repos.d/*; yum install -y centos-release-scl'\r"
expect "password"
send "$DOM0_PASSWORD\r"
interact`
输出：
ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/d
ev/null root@10.2.1.100 'export PATH=~/.local/bin:$PATH; source ~/.bash_profile;
source /etc/profile.d/lang.sh; sed -i 's/enabled=0/enabled=1/g' /etc/yum.repos.d
/*; yum install -y centos-release-scl'
Warning: Permanently added '10.2.1.100' (ECDSA) to the list of known hosts.
root@10.2.1.100's password:
Finished: SUCCESS
我的目标是ssh代理，然后运行Expect脚本，该脚本将ssh到远程并运行命令并退出。
我也在下面尝试过，但登录后未执行任何命令。
spawn ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null $env(PROXY_USERNAME)@8.1.2.2
expect "password"
send "$PROXY_PASSWORD\r"
expect "$"
send "ls -ltr\r"
send "pwd\r"
send "ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null $NGN_DOM0_USERNAME@$dom0_host_ip\r"
expect "password"
send "$DOM0_PASSWORD\r"
send "pwd\r"
expect "#"
send "source /etc/profile.d/lang.sh\r"
send "export PATH=~/.local/bin:\$PATH\r"
send "source ~/.bash_profile\r"
send "source /etc/profile.d/lang.sh\r"
send "sed -i 's/enabled=0/enabled=1/g' /etc/yum.repos.d/*\r"
send "yum install -y centos-release-scl\r"
interact