使用expect 实现 scp 文件的时候不手动输入密码

#!/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 
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

#!/usr/bin/expect -f
set password 123456
#download
spawn scp [email protected]:/root/a.wmv /home/yangyz/
set timeout 300 
expect "[email protected]'s password:"
set timeout 300 
send "$password\r"
set timeout 300 
send "exit\r"
expect eof 

#upload
spawn scp /home/yangyz/abc.sql [email protected]:/root/test.sql 
set timeout 300 
expect "[email protected]'s password:"
set timeout 300 
send "$password\r"
set timeout 300 
send "exit\r"
expect eof