Bash: auto input password how to ?

phyyu · 08-28-2010, 05:43 AM

Hi guys,
When I use the scp command, here is a command prompt "Input password:",
Now I want to use a one line command to perform the scp command.
I tested the "echo "password" | scp xxx yu@10.xxx.xxx.xxx:/", but failed.
Thanks in advance.
Yu

smoker · 08-28-2010, 05:55 AM

You really need to set up public key authentication so that you can use the -i <identity_file> command line switch. You could also try the -B switch but I don't think that will work unless the password is supplied at least once to begin with.

man scp

druuna · 08-28-2010, 06:01 AM

Hi,

Both scp and ssh (both are handled by the same daemon: sshd) will not allow and do not have an options to give the password on the command line or in a script.

The only solution available is creating password-less ssh/scp.

Here are 2 articles that describes how:
Pass on Passwords with scp
HowTo SSH/SCP without a password

There are a lot more articles (and even on LQ there are many threads dealing with this). Use your search engine to look for other ones if the 2 provided aren't sufficient.

Hope this helps.