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I'm very new to Ec2. And I wrote a set of shell scripts and run over ec2 instance :

ec2-run-instances ami-82fa58eb -d

I just get the following output :

RESERVATION r-ed405088  980691203742    default
INSTANCE    i-7eb12d06  ami-82fa58eb            pending     0       m1.small    2012-07-13T08:15:25+0000    us-east-1a  aki-825ea7eb        monitoring-disabled                 ebs                 paravirtual xen     sg-ff369697 default

How come I know that my shell script have been successfully executed?

share|improve this question
Shouldn't you know it's been successfully executed because whatever you wanted to the shell script to do has been done? – womble Jul 13 '12 at 9:19
@womble: Thats what the problem is. In my script I did installing auditd package. And logged all the info into /tmp/install.log. Now how can I know that it got install? How can I open the /tmp/install.log file? – karti Jul 13 '12 at 9:25
You could look to see if the auditd package is installed. – womble Jul 13 '12 at 9:34
Sorry again, I'm new to ec2. How come I see that? Thats my question. – karti Jul 13 '12 at 9:39
That's not an EC2 thing, that's a "Sysadmin 101" thing. Reading the docs for your package manager (whatever that may be) would probably be a good first step. – womble Jul 13 '12 at 9:40
up vote 0 down vote accepted

You can make the shell script create a log file, log into syslog with logger command, send an e-mail to yourself, use Amazon SNS or notify you in some other way.

I think the output of user data shell scripts is not stored anywhere.

I found this blog post useful for learning how to utilize user data for customizing a new instance when setting it up.

share|improve this answer
I have logged all the things into /tmp/install.log file. Is there any way to see that file in ec2 instance? – karti Jul 13 '12 at 9:10

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