Shell Programming and Scripting

HI
I have the following requirement

I have a script a.sh which will deploy files in multiple servers .The argument for the a.sh is abc.gz host1.conf
where abc.gz is a zip file and one.conf will contain all the database connection string .

Now I have to write a b.sh which will call a.sh internally but the argument to the b.sh are three remote hosts

Code:

 b.sh <host1.conf> <host2.conf> <host3.conf>

Now the host.conf will have the ip address ,so that b.sh will be executed on the that host after connection through ssh inside the bash shell script .

Please help me on this .

Welcome harry00514,

I have a few to questions pose in response first:-Most importantly, What have you tried so far?

There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.


We're all here to learn and getting the relevant information will help us all.

HI

This is part of my project where I really got stuck up .Its in Linux system .
So far I have tried with ssh but not able to get how the script will be executed on remote machine and how will I get the log from the remote machine .

Code:

 ssh user@host 'bash -s' <b.sh> <host1.conf> <.gz file>

The user and host I am getting from the config file and the above ssh command I am putting inside loop .The loop will be iterated through host1.conf, host2.conf and so on.
SO that the script will be executed one by one in the remote servers .
This was my requirement.

So, a few more questions I'm afraid:-

Both b.sh and a.sh in local host .But I want to execute it on remote server and get the log file be read from remote server and proceed towards the next remote server execution .


Thanks for your interest and early response .

You will need to send the b.sh to the remote host and make it executable. Use sftp for this. You could add this to your script so if you have several servers, an update to b.sh gets copied out each time.

To get a log file back, again an sftp get would be appropriate.

The sftp should be quite straightforward if ssh is already set up as a password-less connection.

You will end up with something like this logic:-As an alternate, you might also consider:-
Do either of these give you something to build on?



Robin

Send script with sftp setting the execute on
Use ssh to run script remotely and generate log file
Can I have a snippet of code so that I will get more clarity on this.It will be kind of you .

It's getting clearer now .I will give a try and let you know .In the mean time please help me with the snippets of code.