expect scp传输文件

set user "root"
set password "root"
set host "192.168.0.112"
set timeout 10

spawn scp a $user@$host:/root
expect {
    "*(yes/no)?" {
        send "yes\r"
        exp_continue
    }
    "password:" {
        send "$password\r"
    }
}
expect eof