Use AWS CLI and Bash to inspect an EC2 Auto Scaling Group, change its capacity, and apply conditional scaling safely while accounting for policies, regions, and permissions.
How to Manage EC2 Auto Scaling Groups with AWS CLI Commands Read More »
Use PowerShell Invoke-Command to remotely check server uptime, memory, services, and disk space while collecting and reporting structured results from one administrative machine.
PowerShell Remoting with Invoke-Command: Run Health Checks on Multiple Servers Read More »
Learn how to use cron and crontab to run Bash maintenance scripts automatically, including a practical example for backing up and deleting old application logs.
Compare PostgreSQL’s INSERT ON CONFLICT with SQL Server’s MERGE to insert new customer records, update existing ones, and avoid duplicates during synchronization.
SQL Upsert Patterns with PostgreSQL ON CONFLICT and SQL Server MERGE Read More »
Understand Python object references and learn when to use assignment, copy(), or deepcopy() to create safe, independent configuration objects.
Copying and Comparing Objects in Python with copy() and deepcopy() Read More »
Use the AWS CLI to monitor EC2 CPU utilization and manage CloudWatch alarms, including configuration, evaluation periods, missing data, and alarm actions.
Manage CloudWatch Metrics and Alarms with the AWS CLI Read More »
Use PowerShell’s Invoke-RestMethod to call the GitHub Status API, work with JSON response objects, and create filtered service health and incident reports.
Calling REST APIs with Invoke-RestMethod in PowerShell Read More »
Build practical Bash pipelines with sed and awk to normalize structured text, filter deployment data, and format selected fields.
Understand how to normalize customer and order data in SQL, model one-to-many and many-to-many relationships, and use JOINs to query related tables.
Database Normalization and Table Relationships in SQL Read More »
Sort customer dictionaries confidently in Python using custom key functions, tuple-based ordering, and reliable handling of missing values.
Sorting Lists of Dictionaries in Python with Custom Sort Keys Read More »
