Arul's Blog Posts

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How to Change User to Superuser in PostgreSQL
Blog post about how to promote regular user to superuser in PostgreSQL database.... continue reading
{ updated: 2025-02-20 23:31:01 }
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Convert Decimal Number to Any Base in Python
Use Python to convert a decimal number to any base from 2 through 36. After 9, the digits are A through Z.... continue reading
{ updated: 2025-02-18 05:50:02 }
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ACSL Junior Duplicates Problem
My Python solution for the ACSL Junior Division 2017-2018 Contest 4 Problem Duplicates. Includes the problem solving logic and Python code tips.... continue reading
{ updated: 2025-02-13 04:00:15 }
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Bash Script to Print Sequence of Dates From Start Date to End Date
This is a shell script to print a date range or a list of dates from a starting date up to an ending date.... continue reading
{ updated: 2025-02-12 18:53:34 }
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ACSL Junior Strings and Things Problem
My Python solution for the ACSL Junior Division 2002-2003 Contest 3 Problem Strings and Things. Includes the problem solving logic and Python code tips.... continue reading
{ updated: 2025-02-09 01:34:10 }
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How to Find and Replace Text using Vim Editor
This blog post shows you how to find and replace text using the Vim editor. It works for NeoVim and other variants as well.... continue reading
{ updated: 2025-02-06 19:09:10 }
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How to Generate Self-Signed SSL Certificate for 10 Years Using OpenSSL
How to create self-signed SSL certificate valid for 10 years. One line command. This uses OpenSSL to generate the SSL/TLS certificate and key.... continue reading
{ updated: 2025-02-05 22:46:21 }
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How to Change the Author Name and Email for Multiple Git Commits
Tutorial on how to change the author name and email address for multiple existing git commits.... continue reading
{ updated: 2025-02-05 22:16:15 }
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How to Find the Union of Two Lists in Python
Sample code showing how to find the union of two lists in Python.... continue reading
{ updated: 2025-02-05 21:36:21 }
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How to Find the Common Items in Two Lists in Python
Sample code showing how to find the common items in two lists in Python.... continue reading
{ updated: 2025-02-05 21:27:25 }

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