#!/usr/bin/expect
set timeout 100
set host [lindex $argv 0]
set username [lindex $argv 1]
set password [lindex $argv 2]

spawn scp -r  file $username@$host:/路径/file
 expect {
 "(yes/no)?"
  {
  send "yes\n"
  expect "*assword:" { send "$password\n"}
 }
 "*assword:"
{
 send "$password\n"
}
}
expect "100%"
expect eof

调用格式

expect ./scp.exp  参数1  参数2 参数3    expect ./scp/exp user 666666 192.169.1.100

网上有很多教程，不在赘述，需要注意的地方 { 前后必须要有空格！