Shell Programming and Scripting

i want to scp file from one server to another. both server have different user name and it needs to give password to transfer file.how can we mention password in the script itself so that we need not mention password while running the script.
Say from servers cpli with user abc and file path /opt i want to transfer file to server cper with user xyz to path /tmp

You don't.

scp is designed to prevent you from injecting passwords in this manner, because it is an extremely bad idea.

Any other sane authentication method also rejects injected passwords the same way -- including su and sudo.

If you want to connect passwordlessly, use ssh keys.

what other possible way can be possible to do this

Try ssh keys. SSH login without password

Any other option other than this possible here

Not any good ones. All other options involve installing third-party utilities and opening up massive security holes.

Why can't you use keys? That's what they're there for.

Is there any possibility of Invoke user input

Like,using expect script interactive

Code:

expect script.sh user passwd

cat script.sh

Code:

#!/usr/bin/expect
scp ~/text.txt $1@IP: ~/
expect "?asswd:\r"
send "$2\r"
interact

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