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Creaing a script using SCP to backup from one machine to another.

Posted on 2008-10-20
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Last Modified: 2012-05-05
I had started creating a shell script using scp to copy certain directories from one server to another.  My question is... Is it possible for this shell script to type in passwords?  For instance when you use SCP it asks for the password of the user you are using to connect to the remote server with.

See code below for an example of how I am using it.  Now when this runs it prompts for the root password of that server.  However I will be wanting to run this automatically as a cron job.  So is there a way to make the script type in the root password?  Maybe scp has a flag for the password?

Any help would be appreciated.


echo "Attempting back via SCP"
date
echo "Backing up /var/log"
scp -rqp /var/log root@10.1.1.14:/home/serverbackup/Mercury/var
echo "/var/log complete"

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Question by:rvpmis
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3 Comments
 
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by:jgiordano
ID: 22760134
passwords are a little tricky and require interaction. the expect language is what a lot of people use.

What about trying ssh keys?
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namol earned 250 total points
ID: 22760631
The best way to go about this would be to use SSH-Keys, which can be setup by following the directions listed here, http://www.linuxjournal.com/article/8600 .
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by:MikeOM_DBA
ID: 22760650

You could set .ssh trusted connectivity by exchanging the "public" keys.
Look into "authorized_keys" file under the .ssh directory.
Google ssh-keygen and authorized_keys.
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