liunx 免密登录远程主机

#!/bin/bash
#Program:
#    no password login in hosts
#History:
#    hbl    2017/12/9    1.0.0v

function auto-login()
{
    expect -c "
    spawn ssh root@ip    
    set timeout 30
    expect 
    {"*yes/no"   send "yes", exp_continue
      "*assword"  send  "123456"
    }
    expect eof
  "
}

auto-login