James Mathenge

@Jamesmathenge

Sharing knowledge, sparking innovation, and embracing all things tech.

Nairobi, KenyaJoined June 2023

About

A highly skilled professional dev who possesses a unique combination of expertise in both Finance and Software Development

Available for

I am available for mentoring, technical writing, open source projects, back-end development

James Mathenge's blogs

Code Junctioncodejunction.hashnode.dev14 posts

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Recently published

JMJames Mathengecodejunction.hashnode.devAug 1, 2023 · 5 min read

The Complete Guide to Regular Expressions: Unleashing the Power of Pattern Matching

Regular expressions, also known as regex or regexp, are essential tools for text processing and string manipulation across many programming languages. Mastering regular expressions unlocks new levels of efficiency and productivity in activities rangi...

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JMJames Mathengecodejunction.hashnode.devJul 30, 2023 · 5 min read

Taking User Input in Bash Scripts

Bash scripts are often more useful when they can interact with users. Allowing input provides flexibility. This tutorial will show how to accept user input in bash scripts. We will cover: Command line arguments - Pass input via the command line Rea...

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JMJames Mathengecodejunction.hashnode.devJul 29, 2023 · 3 min read

Powerful Text Processing in Bash Using sed, awk, grep, and More

Processing text is an essential part of many bash scripts. Bash provides many handy commands and utilities for manipulating plain text that should be in every scripter's toolkit. This guide will demonstrate how to use text processing utilities like s...

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JMJames Mathengecodejunction.hashnode.devJul 28, 2023 · 3 min read

The Advantage of Using #!/usr/bin/env bash Over #!/bin/bash

Shebang lines at the top of bash scripts allow you to specify the interpreter path to use when executing the script. There are two common approaches - using #!/bin/bash or #!/usr/bin/env bash. The latter provides significant advantages in terms of po...

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JMJames Mathengecodejunction.hashnode.devJul 27, 2023 · 4 min read

Essential Commands for Vim and Emacs

Core Vim Commands Vim's modal editing relies heavily on keyboard commands. Mastering movement, editing, and other shortcuts in Normal, Visual, and Insert modes is key to productivity. Normal Mode Navigation: hjkl - left, down, up, right movement gg...

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James Mathenge

About

Available for

James Mathenge's blogs

Recently published

The Complete Guide to Regular Expressions: Unleashing the Power of Pattern Matching

Taking User Input in Bash Scripts

Powerful Text Processing in Bash Using sed, awk, grep, and More

The Advantage of Using #!/usr/bin/env bash Over #!/bin/bash

Essential Commands for Vim and Emacs

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James Mathenge

About

Available for

James Mathenge's blogs

Recently published

The Complete Guide to Regular Expressions: Unleashing the Power of Pattern Matching

Taking User Input in Bash Scripts

Powerful Text Processing in Bash Using sed, awk, grep, and More

The Advantage of Using #!/usr/bin/env bash Over #!/bin/bash

Essential Commands for Vim and Emacs