topic Re: help needed on ssh and scp in shell scripting in Operating System - Linux

help needed on ssh and scp in shell scripting

Karthik_sg — Thu, 19 Apr 2007 01:36:03 GMT

hey guys,
i have few rpms on my system.th eproblem is that i have to copy these rpms to another system whose ip is say 12.0.0.34.and i have to run the rpm there.it is usually for updating.i want to use ssh and scp command but again whn using these i have supply the password in my script itself.sum pls tel me how to do this.my machines ip may be 12.0.0.13.thnks in advance.

Re: help needed on ssh and scp in shell scripting

Alexander Chuzhoy — Thu, 19 Apr 2007 01:53:06 GMT

You can copy your publick ssh key to the destination and you won't be promted for password. To do that:
1. run `ssh-keygen -d` on you source machine.
2. copy the file ~/.ssh/id.dsa_pub username@remotehost:/tmp/
3. login to remote machine.
4. run `cat /tmp/id.dsa_pub >> ~/.ssh/authorized_keys`
5. remove the public key from tmp `rm /tmp/id.dsa_pub`.
6.logout from remote machine and try to login there via ssh - you shouldn't be prompted for password anymore...

Re: help needed on ssh and scp in shell scripting

Karthik_sg — Thu, 19 Apr 2007 02:00:55 GMT

thnks for ur reply sir,bt i am nt sure and aware wht public keys are,if u can tell me indetail with the code it wil be ver helpful

Re: help needed on ssh and scp in shell scripting

Ivan Ferreira — Thu, 19 Apr 2007 04:30:15 GMT

Alexander Chuzhoy already sent the code!! You have to run those commands to get public key without password authentication.

Re: help needed on ssh and scp in shell scripting

Karthik_sg — Mon, 23 Apr 2007 08:27:06 GMT

hey i tried runnin the code but it asks for sum passwd.I am not sure how to go about it still.coz if i give my sustem or the destination system password,its not accepting.can u explain whata public key is?

Re: help needed on ssh and scp in shell scripting

Victor Semaska_3 — Mon, 23 Apr 2007 11:21:05 GMT

You're talking about it asking for the passphsare, right? Like this:

Enter passphrase (empty for no passphrase):

Simple press .

Vic

Re: help needed on ssh and scp in shell scripting

Karthik_sg — Tue, 24 Apr 2007 01:11:26 GMT

yes.My objective is to install a rpm on a machine in the same network thru shell script.but is i use ssh it asks for a password and the control is entirely given out until we exit whch thn returns the control back to shell script.i hope u understand.so how to go abt it