Linux中使用expect脚本实现远程机器自动登录

#!/usr/bin/expect -f
set hostname [lindex $argv 0]
set user [lindex $argv 1]
set passwd [lindex $argv 2]
set timeout 30
set force_conservative 1
if {$force_conservative} {
  set send_slow {128 .1}
}
spawn ssh $user@$hostname;
expect {
    "*continue connecting (yes/no)?" { send -s "yes\r"; exp_continue }
    "*assword:" {
        send -s "$passwd\r";
    }
}
interact

alias  h101='ssh_expect 192.168.0.101 user> password>'
alias  h102='ssh_expect 192.168.0.102 user> password>'