Script to login to another server

Shell Programming and Scripting
1

Folks;
I'm trying to write a shell script that should runs on one machine and to perform the following:

  • The script should SSH to another machine using user name and password then runs a command on that machine then exit and bring the command output to the screen.

Thanks in advance for the help

2

  1. For logging in use, passwordless login or using expect give the password.

  2. use -c to execute a command.

  3. Normally it will show the output in the screen, and exits.

ssh username@hostname ls

This will execute ls in that host, shows the output, and exits.

3

use rsh

4

Thanks for replying folks;

  • I must use SSH.

  • I don't see from the answer where i can add the password for the SSH inside the script. the script should be able to login to the new machine using user and password.

  • i'd like the user to pass in the IP address for the machine we need to SSH to it as it will change every time.

  • Also, i need the user to get back the output from running the command inside the script

Thanks again for your help

5

Create public SSH keys on all remote machines then add those keys to the authorized_keys2 file on the host you intend to run your script. This will allow for passwordless SSH connection.

You could assign a variable the output by running your SSH command in backticks.

ssh_output=`ssh user@host command`