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Top Forums Shell Programming and Scripting ssh through "expect" in shell script Post 302553803 by Chubler_XL on Thursday 8th of September 2011 07:55:21 PM
Old 09-08-2011
There are heaps of articles on the web showing how to setup public/private RSA keys for ssh for example Using SSH keys for Password-less login .

It dosn't necessarily require Openssh to use them, if your server already has a non-Openssh version of sshd that should be fine.

Once this is working you should be able to do:
Code:
$ ssh uname@$ip id

Without typing a password.

BTW There are a few reasons why the expect script didn't work:
1. Use type expect to see where it is being run from
2. You need #!/path/to/expect on the first line of your script - otherwise it will be run by sh not expect
3. ssh will not allow passwords to come from a non tty session like expect - it has been specially coded to disallow this.

Last edited by Chubler_XL; 09-08-2011 at 09:01 PM..
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SSH-ARGV0(1)                                                BSD General Commands Manual                                               SSH-ARGV0(1)

NAME
ssh-argv0 -- replaces the old ssh command-name as hostname handling SYNOPSIS
hostname | user@hostname [-l login_name] [command] hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name] [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command] DESCRIPTION
ssh-argv0 replaces the old ssh command-name as hostname handling. If you link to this script with a hostname then executing the link is equivalent to having executed ssh with that hostname as an argument. All other arguments are passed to ssh and will be processed normally. OPTIONS
See ssh(1). FILES
See ssh(1). AUTHORS
OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen. Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH. Markus Friedl contributed the support for SSH protocol versions 1.5 and 2.0. Jonathan Amery wrote this ssh-argv0 script and the associated documentation. SEE ALSO
ssh(1) Debian Project September 7, 2001 Debian Project
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