Arul's Blog Posts

How to Package Amazon Frogbit (Limnobium laevigatum) Aquarium Plants
Blog post on how to pack Amazon Frogbit aquarium plants for shipping via USPS, FedEx or UPS, or to a local buyer.... continue reading
{ updated: 2025-09-26 16:53:23 }
How to Add HTTP Referer to Curl Commands
Tutorial on how to add HTTP referer to curl commands... continue reading
{ updated: 2025-09-24 18:45:25 }
How to Read a File Line by Line in Linux
Tutorial on how to read a file line by line in Linux, BSD, macOS and other variants.... continue reading
{ updated: 2025-09-24 17:55:04 }
How to Clear DNS Cache on Your OpenWRT Router and Computer
Tutorial on how to refresh the DNS cache on your router running OpenWRT, DD-WRT or similar firmwares. Includes commands to delete DNS cache on your computer... continue reading
{ updated: 2025-09-22 18:09:55 }
How to Find the Operating System in Python
Different ways to find the operating system name using Python.... continue reading
{ updated: 2025-09-22 03:28:02 }
I Added More Than 100 Shrimp to our Planted Aquariums
Last weekend, I acquired more than a hundred shrimp from a hobbyist who was leaving town. This blog post is how I added them to our tanks and what to feed them.... continue reading
{ updated: 2025-09-17 19:27:34 }
Python for Kids: a 30-Day Roadmap
This blog post is about a suggested timeline on how to teach Python to kids. This includes a list of topics to teach core Python for school age. Python 3.13... continue reading
{ updated: 2025-09-17 17:07:05 }
How to Install Python 3.13.7 From Source
Tutorial on how to install Python 3.13.7 from source. configure, make, make install. Useful for Debian, Ubuntu, Fedora, Red Hat and other Linux systems.... continue reading
{ updated: 2025-09-17 17:05:49 }
How to Install Python 3.13.7 on the Raspberry Pi
Tutorial on how to Install Python 3.13.7 on the Raspberry Pi. This will be updated whenever there is a new version or Python or Raspberry Pi OS (Raspbian).... continue reading
{ updated: 2025-09-17 17:00:23 }
How to Find the IP Address of the Email Sender
Tutorial on how to find the IP address of the email sender in Gmail, Yahoo mail, Hotmail, AOL, Outlook Express and other email providers.... continue reading
{ updated: 2025-09-17 16:48:13 }

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