How to Remove a Passphrase from Certificate Key
If you have a Certificate Key that includes a Passphrase and you need to remove it, potentially to use it with AWS App Mesh, then… Read More »How to Remove a Passphrase from Certificate Key
CLI
How to Check if a Volume is Mounted in Bash
If you need to check if a volume is mounted in a Bash script, then you can do the following. How to Check Mounted Volumes… Read More »How to Check if a Volume is Mounted in Bash
How to Determine if a Bash Variable is Empty
If you need to check if a bash variable is empty, or unset, then you can use the following code: The above code will check… Read More »How to Determine if a Bash Variable is Empty
How to Order by File Size using the du command in Linux
If you use the du command to list all the file sizes on Linux: Then you would have noticed that they are not ordered by… Read More »How to Order by File Size using the du command in Linux
How to Resize an AWS EBS Volume in Bash
If you need to resize an EBS volume in AWS, you can do so using bash. Step 1 – Create a bash file Create a… Read More »How to Resize an AWS EBS Volume in Bash
How to Setup Credential Helper for AWS CodeCommit
AWS CodeCommit is a git code repository service by Amazon Web Services. You will want to clone your repository and setup your remotes using credential… Read More »How to Setup Credential Helper for AWS CodeCommit
How to Approve a SageMaker model in AWS CLI
Sometimes you will need to manually approve a SageMaker model package from the AWS CLI. Step 1 – Get a list of the available packages… Read More »How to Approve a SageMaker model in AWS CLI
How to Recursively Delete all Files in an AWS S3 Bucket
If you need to recursively delete all files in an AWS S3 bucket, then you can do the following: If you only want to delete… Read More »How to Recursively Delete all Files in an AWS S3 Bucket
How to get CPU Frequency in Linux
If you need to get the CPU Frequency in Linux, then you can run the following command:
[Solved] Instance Profile already exists in Terraform
If you get the Instance Profile already exists error when running your Terraform apply, then it is either because an instance profile with that name… Read More »[Solved] Instance Profile already exists in Terraform
[Solved] An error occurred (UnauthorizedException) when calling ListAccounts operation: Session token not found or invalid
If you are using aws configure sso to populate your ~/.aws/credentials file and you get the following error when you try and reauthorize, then you… Read More »[Solved] An error occurred (UnauthorizedException) when calling ListAccounts operation: Session token not found or invalid
How to Match Multiple Strings with grep
If you need to match a string in a file, then grep is your friend. An example of using grep Let’s take a file called… Read More »How to Match Multiple Strings with grep
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… Read More »How to Invoke an AWS Lambda from the CLI
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:
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… Read More »How to Force Gitlab pipeline to fail on condition
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… Read More »How to run AWS CLI commands based on AWS CLI Version in Bash
[Solved] Unknown options: –cli-binary-format AWS CLI
If you have tried calling the AWS CLI and got the following error: Then it is because you are using the AWS CLI v1 and… Read More »[Solved] Unknown options: –cli-binary-format AWS CLI
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:
[Solved] Network interface is in use by another service in AWS
If you have tried to delete a Security Group, or VPC, or various other resources and you get the dreaded Network interface is in use… Read More »[Solved] Network interface is in use by another service in AWS
How to Uninstall npm packages
We typically install an npm package as follows: But how do we uninstall an npm package? How to uninstall an npm package This will uninstall… Read More »How to Uninstall npm packages
How to create a Countdown Timer in Python
If you need to count down a specific amount of time, say for example, when a token is set to expire, then a countdown timer… Read More »How to create a Countdown Timer in Python
How to Rename a Git Branch
If you want to rename a git branch, then you have a few options, dependent on the use-case. Option 1 – Rename a Git Branch… Read More »How to Rename a Git Branch
[Solved] Terraform Error accessing remote module registry in PowerShell
If you are using PowerShell and trying to run a terraform init, you may get an error as follows: Error: error accessing remote module registry… Read More »[Solved] Terraform Error accessing remote module registry in PowerShell
How to Save sed Output Directly to a File
You have 3 options here: Option 1: use tee with sed Option 2: use > with sed Option 3: use sed with -i option
How to copy S3 objects between AWS accounts
In your source account create a customer-managed policy: In your destination bucket, update the bucket policy: Testing the S3 copy between accounts: