shell 自动登录 上传 下载

通过在shell脚本中用expect实现远程scp文件：

使用expect前，需要先安装两个rpm包：

# rpm -ihv CentOS/expect-5.43.0-5.1.i386.rpm
# rpm -ihv CentOS/expect-devel-5.43.0-5.1.i386.rpm

或者yum直接下载安装

yum install expect -y

脚本如下：

#!/usr/bin/expect -f
set password 密码
spawn scp 用户名@目标机器ip:拷贝文件的路径 存放本地文件的路径
set timeout 300
expect "用户名@目标机器ip‘s password:" //注意：这里的“用户名@目标机器ip” 跟上面的一致
set timeout 300
send "$password\r"
set timeout 300   //此处设置超时时间，单位为秒，如果，拷贝文件比较大并且多时，应该将这个值调大一些。
send "exit\r"

expect eof

附：scp参数
-r：拷贝目录
-c：允许压缩

一个完整的例子
  
expect_scp.exp
========================================================================

1. #!/usr/bin/expect -f
2. #Author by kevin
3. #date is 2011-11-14
4. set password vcdog
5. #download local host
6. spawn scp -r [email protected].168.1.107:/root/dba_tool/test /root/DBA_TOOL/
7. set timeout 3
8. expect {
9. "yes/no" {send "yes\r";exp_continue}
10. }
11. expect "[email protected]‘s password:"
12. set timeout 3
13. send "$password\r"        ----或者\n
14. set timeout 300
15. send "exit\r"
16. expect eof
17. #upload remote host
18. spawn scp -r /root/DBA_TOOL/t.txt [email protected].168.1.107:/root/dba_tool/
19. set timeout 3
20. expect {
21. "yes/no" {send "yes\r";exp_continue}
22. }
23. expect "[email protected]‘s password:"
24. set timeout 3
25. send "$password\r"
26. set timeout 300
27. send "exit\r"
28. expect eof

==========================================================================

测试验证：
# chmod +x ./expect_scp.exp
# expect ./expect_scp.exp

spawn scp -r [email protected]:/root/dba_tool/test /root/DBA_TOOL/
[email protected]‘s password:
test                                                                                             
100%   12     0.0KB/s   00:00   
spawn scp -r /root/DBA_TOOL/t.txt [email protected]:/root/dba_tool/
[email protected]‘s password:
t.txt                                                                                             100%  254     0.3KB/s   00:00

本地服务器：（192.168.1.106）

[[email protected] DBA_TOOL]# ll /root/DBA_TOOL/
total 64
-rw-r--r-- 1 root root   548 Nov 14 23:46 expect_scp.exp
-rw-r--r-- 1 root root    12 Nov 14 23:24 test
-rw-r--r-- 1 root root   254 Nov 14 23:24 t.txt

远程服务器：（192.168.1.107）
[[email protected] dba_tool]# ll /root/dba_tool/
total 60
-rw-r--r-- 1 root root    12 Nov 14 22:24 test
-rw-r--r-- 1 root root   254 Nov 14 22:47 t.txt