scp without password between two servers

Shell Programming and Scripting
1

Hello Folks,

I have two linux server accounts server1 and server2

From the terminal if I say this command,

scp /source/folder/from/server1/unix.txt user@server2.com:/destination/folder/

Then it prompts for the password

user@server2.com's password:

I enter my password and then it starts copying.

But, I would like to do this using bash script because of the size of the files. I searched online before posting and came across using

ssh-keygen

. This one will not serve the purpose because I don't have admin rights to copy the .pub files on to other servers.

Any pointers on how to pass the password to a bash script that can be submitted to the server for execution will be greatly appreciated.

2

Why do you need admin rights to copy the .pub file? You can scp the .pub file to other server & append it to .ssh/authorized_keys using password for this first time.