How to Invoke an AWS Lambda from the CLI
If you want to invoke an AWS Lambda from your CLI, then the best option is to have the AWS CLI installed.
Getting started with the AWS CLI – AWS …
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In-depth guides, insights, and best practices for modern software engineering
How to Exit if a Bash Variable in Not Set
Sometimes you might want to exit a command if a variable is not set in Bash.
You can do this as follows:
if [ -z "$VARIABLE_NAME" ]; then echo …How to Force Gitlab pipeline to fail on condition
if you have a conditional in your Gitlab pipeline stage that checks if something has succeeded or failed, then you can use this to pass or fail your …
Read Article →How to run AWS CLI commands based on AWS CLI Version in Bash
If you find yourself having the requirements to support both AWS CLI v1 and v2 simultaneously, then you can use the following conditional in Bash to …
Read Article →[Solved] Unknown options: –cli-binary-format AWS CLI
If you have tried calling the AWS CLI and got the following error:
Unknown options: --cli-binary-format
Then it is because you are using the AWS CLI …
How to Generate Random Strings with Dash in-between in Python
If you need to generate a random string that looks something like this: VUNBXJ-230411, then you can use the following random generator:
import random, …How to Check OS version and flavor in Linux
If you need to check the version and flavour of the running Linux instance, then you can try the below commands:
cat /etc/os-release
lsb_release -a …How to use a Backend-Config File for Terraform S3 State Configuration
If you are using S3 as the backend for your state management in Terraform, then you can create environment specific configuration files where you …
Read Article →How to Refresh State in Terraform
Sometimes your infrastructure may be out of sync with your Terraform state because resources may have been amended or deleted manually.
For this you …
Read Article →How to get the Length of an Array in C
There isn’t really a standard way to get the length of array in C. This means you need to do some additional work to achieve getting the length …
Read Article →How to write If/Else Statements in Terraform
If/Else statements are conditional statements that perform decisions based on some known state, or variable.
Terraform allows you to perform these …
Read Article →How to Reset Udemy Progress
If you need to redo a Udemy course and you would like to reset the course’s progress, then you can use the following Javascript snippet below. …
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