在Linux上自动执行SFTP / SSH提示

Question

I'm particularly new to shell scripting and ssh commands and such. I was wondering if I could automate simple sftp prompts when uploading/downloading files from one server to another.

Here is what I do:

• command: sftp username@ServerHost
• Response: The authenticity of host '***' can't be established. Are you sure you want to continue connecting (yes/no)?
• after I type 'yes' it asks me the password

I essentially want to automate this since I'll be calling a script which will upload a file from my source server to a remote one through an InfoSphere Datastage sequence job on the source server.

PS. Pardon my insolence if this question doesn't make sense of if it's too juvenile :)

Answer 1

check out expect, that helps to automate such issues in scripts.

Here a sample that works for me:

#!/usr/bin/expect -f

set timeout 30

set user "coder"
set node "repohost"
set fsrc "/home/coder/Sources/sysperf/makefile"
set fdst "/tmp"
set uspw "topSecret"

spawn sftp $user@$node:$fsrc $fdst
expect_after eof {exit 1}
expect "$user@$node's password: " {send "$uspw\r"}
expect "*100%*"