How to get CPU Frequency in Linux
If you need to get the CPU Frequency in Linux, then you can run the following command:
watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Disable Warning with Python Pandas
How can python pandas disable warnings?
If you need to disable warnings with Pandas on Python, then you can use the warnings module and ignore the …
How to Get all Caps Alphabet as List in Python
If we take the following list:
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', …[Solved] Error creating RDS DB Instance: IAM role ARN value is not value or does not include the required permissions for: ENHANCED_MONITORING
When you are trying to create an RDS database and you get the dreaded error message:
IAM role ARN value is invalid or does not include the required …
How to create an AWS Lambda in Terraform
Step 1 – Lambda Code in Python
The following code expects a python file with the contents as follows in a file called python/script1.py:
def …[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 …
[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 can …
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 somefile.txt
this
is
a
test …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 …
Read Article →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 …
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