#!/usr/local/bin/expect -f  
#<---insert here your expect program location
#procedure to attempt connecting; result 0 if OK, 1 elsewhere
 proc connect {passw} {
  expect {
    "(yes/no)?" {send "yes/r";exp_continue} #第一次使用SFTP时候会要求输入yes/no 
    "password:" {send "$passw/r"            #自动输入密码
  expect {
     "sftp*" {        #检测返回sftp>
   return 0
      }  
  }
     }
  }
  # timed out
  return 1
 }
 
 #read the input parameters
 set user [lindex $argv 0]
 set passw [lindex $argv 1]
 set host [lindex $argv 2]
 set location [lindex $argv 3]
 set file1 [lindex $argv 4]
 
 #puts "Am citit:/n";
 #puts "user: $user";
 #puts "passw: $passw";
 #puts "host: $host";
 #puts "location: $location";
 #puts "file1: $file1";

 
 #check if all were provided
 if { $user == "" || $passw == "" || $host == "" || $location == "" || $file1 == "" }  {
   puts "Usage: <user> <passw> <host> <location> <file1 to send>/n"
   exit 1
 }
 
 #sftp to specified host and send the files
 spawn sftp $user@$host
 
 set rez [connect $passw]
 if { $rez == 0 } {
   send "cd $location/r"
   set timeout -1
   send "put $file1/r"
   #send "ls -l/r"
   #send "quit/r"
   #send "mkdir testsftp/r"
   send "quit/r"
   expect eof
   exit 0
 }
 puts "/nCMD_ERR: connecting to server: $host!/n"
 exit 1
 0

expect也可以用两种形式调用

1?? ./my.exp $usr $pwd $host $local $file

2. 代码中直接插入?

expect<<!

...

!

3. (推荐)生成密钥对

因为这种方式不用把密钥卸载程序里,所以更安全

第一步：生成密匙对，我用的是rsa的密钥。使用命令 "ssh-keygen -t rsa"

   [user1@rh user1]$ ssh-keygen -t rsa
   Generating public/private rsa key pair.
   Enter file in which to save the key (/home/user1/.ssh/id_rsa):
   Created directory '/home/user1/.ssh'.
   Enter passphrase (empty for no passphrase):
   Enter same passphrase again:
   Your identification has been saved in /home/user1/.ssh/id_rsa.
   Your public key has been saved in /home/user1/.ssh/id_rsa.pub.
   The key fingerprint is:
   e0:f0:3b:d3:0a:3d:da:42:01:6a:61:2f:6c:a0:c6:e7user1@rh.test.com
   [user1@rh user1]$

   ~/.ssh/authorized_keys
   [user1@rh user1]$ scp ~/.ssh/id_rsa.pub rh1:/home/user1/.ssh/authorized_keys 
   
   user1@rh1's password:
   id_rsa.pub                                    100%  228     3.2MB/s   00:00
   [user1@rh user1]$