Shell Scripting with AWS Command Line Interface

by XDK 3. August 2019 00:12

Examples:

1) List of EC2 instance IDs:
aws ec2 describe-instances | grep InstanceId | tr '",' ' '

2) List of Load Balancers by Name:
aws elbv2 describe-load-balancers | grep LoadBalancerName | tr '",' ' '

3) List of Target Groups by Name:
aws elbv2 describe-target-groups | grep TargetGroupName | tr '",' ' '

4) List of Autoscale Groups by Name:
aws autoscaling describe-auto-scaling-groups | grep AutoScalingGroupName | tr '",' ' '

5) List of Launch configurations by Name:
aws autoscaling describe-launch-configurations | grep LaunchConfigurationName | tr '",' ' '

 6) List of available IAM users by Name:
aws iam list-users | grep UserName | tr '",' ' '

Reference 

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Amazon Web Service

How do I run .sh files in Linux?

by XDK 3. August 2019 00:07

Solution:

The procedure to run the .sh file shell script on Linux is as follows:

Set execute permission on your script:
chmod +x <script-name>.sh

To run your script, enter:
./<script-name>.sh OR sh <script-name>.sh OR bash script-name>.sh

Tags: ,

Amazon Web Service

User-data bootstrap scripts is not running on the Amazon Linux AMI

by XDK 1. August 2019 05:43

Quick fix:

Adding "#cloud-boothook" command to the script fixes the issue.

Example:

#cloud-boothook
#!/bin/bash
echo 'User-data bootstrap script invoked' > /home/ec2-user/bootstrap-script-output.txt

Tags:

Amazon Web Service

About the author

My name is Xavier Dilip Kumar Jayaraj having 13+ years of IT experience which includes solid experience and depth Knowledge in Application Life Cycle Management, Configuration Management, Implementation and Support using TFS on-premises and Azure DevOps. I have invested in gaining DevOps knowledege to expertise with Cloud Computing providers namely Microsoft Azure and Amazon Web Services in recent years. I am very positive to learn and adapt emerging technologies to client’s environment.

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Disclaimer

The information provided here is based on my expreriences, troubleshooting and online/offline findings. It can be used as is on your own risk without any warranties and I impose no rights.