AWS Backup and Snapshot Commands with the AWS CLI
Use the AWS CLI to start on-demand EBS backups, monitor job status, and inspect completed recovery points in an AWS Backup vault.
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Creating Custom Objects with PSCustomObject in PowerShell
Learn how to build structured PowerShell inventory records with PSCustomObject, work with collections in the pipeline, and export reusable objects to CSV.
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Writing Robust Bash Scripts with Strict Mode
Build more reliable Bash deployment scripts with strict mode, explicit validation, safe variable handling, and clear failure messages.
PostgreSQL Database Triggers: Audit INSERT, UPDATE, and DELETE Changes
Build PostgreSQL audit triggers that record customer changes, compare OLD and NEW row values, and capture only meaningful updates such as status or phone-number changes.
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Async HTTP Requests in Python with asyncio and aiohttp
Build asynchronous HTTP clients in Python using asyncio and aiohttp. This tutorial covers coroutines, concurrent requests, timeouts, error handling, and semaphore-based concurrency limits.
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AWS CLI SQS Queue Commands: Send, Receive, and Delete Messages
Use the AWS CLI to manage an SQS queue from end to end. This tutorial covers asynchronous messages, visibility timeouts, receipt handles, long polling, deletion, and queue monitoring.
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How to Install and Manage PowerShell Modules
Learn the basics of PowerShell module management, from searching the PowerShell Gallery to installing modules for your user account and safely maintaining them.
File Permissions with chmod and chown in Bash
Understand how Linux permissions and ownership work with practical Bash examples using chmod, chown, ls, and stat.
SQL Pagination with LIMIT and OFFSET
Learn how to split SQL query results into pages using LIMIT and OFFSET, calculate offsets for any page size, and keep results consistent with stable ordering.
Build a REST API with Flask and Python
Build a task-tracking REST API with Flask and Python. This tutorial covers CRUD routes, JSON responses, validation, HTTP status codes, filtering, and PUT versus PATCH.