Below are a few ways to customize Visual Studio Code. In order to get settings.json do cmd + shift + p and search for settings and select Preferences: open settings (JSON).

vscode editor productivity development-tools configuration customization extensions ide programming workflow vim

In this post, I will be discussing how to set up emacs.

emacs editor productivity text-editing configuration customization elisp packages development-tools unix linux macos vim

In the below post, I will walkthrough on how to customize zsh. Ensure you installed zsh; the configuration file will be in your home directory ~/.zshrc. I recommend using oh-my-zsh as it provides all the necessary settings by default. If...

zsh shell terminal productivity configuration customization oh-my-zsh plugins themes unix linux macos development-tools

I have a System76 Galago Pro, Ubuntu laptop, and its fan was making a huge noise, and it was always on. When in i3 window manager, I saw the temperature of the laptop is crossing 96 degrees Celsius, I thought....

laptop hardware thermal-management troubleshooting system-administration performance cooling maintenance linux ubuntu

Having a good window manager will help in navigating windows quickly. You can accomplish this by having an i3 window manager. Below is how you can configure the i3 window manager in Ubuntu.

i3 ubuntu window-manager linux desktop-environment productivity tiling customization workflow system-administration

Below are some terminal emulators that I used across platforms.

terminal terminal-emulator alacritty kitty productivity command-line shell unix linux macos windows development-tools workflow comparison

In this post, I will go through how to customize neovim. If you are new to Vim, I suggest you go through this post to get familiarize with Vim first.

neovim nvim vim editor productivity text-editing configuration plugins lua customization development-tools modern-vim

You can capture a regex pattern using grouping and use that group to search further or replace it by appending or prepending text to it. In the above screenshot, you can see that “Regex” is referred to as \1 and...

regex pattern-matching text-processing backreference sed grep programming string-manipulation search-replace command-line vim python

I will go through some ways to customize Vim; this will be a long post. You can use below table of contents below to navigate between topics.

vim editor productivity text-editing shortcuts configuration plugins navigation search-replace buffers windows command-line unix development-tools

With Tmux, you can manage multiple sessions/terms and navigate quickly. There are advanced terminals like iTerm2 from which you can accomplish most of the tasks that can be done by tmux, but since iTerm2 is available only to macOS, you...

tmux terminal multiplexer productivity configuration customization session-management unix linux macos development-tools workflow

“I believe the role of the government is too big. Society must be more decentralized.” ― Pavel Durov ―

ipfs blockchain decentralized-web web3 distributed-systems peer-to-peer hosting censorship-resistance content-addressing web-development

When your java application is getting unresponsive or requests are taking time, taking thread dumps will help find the cause.

java jvm thread-dump debugging performance troubleshooting concurrency deadlock thread-analysis profiling enterprise-java monitoring

This article aims to find the optimal way to search for a word in a folder containing multiple inner folders and a large set of files.

grep ripgrep ag search-tools performance benchmarking text-processing command-line productivity regex file-search comparison

The purpose of this article is to explain how a kernel can invoke (out-of-memory) oom killer to kill a process abruptly which might be a java or node process of your application and what steps we can take to resolve...

java linux oom-killer kernel memory-management system-administration debugging troubleshooting process-management monitoring dmesg

The purpose of the article is to explain default configurations (which can cause bottleneck) at Node.js, Apache, and OS level and how to change those configurations. Any configuration listed below in the diagram can affect client request processing time.

nodejs apache performance web-server backlog tuning system-administration networking concurrent-connections load-handling server-optimization

In your java application, if you had seen the below error in logs. SOURCE:java.lang.OutOfMemoryError: unable to create new native thread The above error means that when java process wants to create a new thread and requests for a new process...

java jvm out-of-memory debugging performance troubleshooting memory-management ulimit native-threads system-administration linux tuning

Below is one example of analyzing heap dump to know which objects are responsible for JVM out of memory.

java jvm heap-dump memory-analysis debugging performance eclipse-mat troubleshooting memory-leak profiling enterprise-java

Tai Lung: gasps The Wuxi finger hold! Po: Oh, you know this hold. Tai Lung: You’re bluffing. You’re bluffing! Shifu didn’t teach you that! Po: Nope. I figured it out. Skidoosh. — [Kung Fu Panda]

bash zsh linux shell file-management bulk-operations parameter-expansion scripting automation unix macos regex pattern-matching

Below are some essential shortcuts built-in in Bash (and in Zsh), which enables a user to quickly move around the current command, edit it, and utilize previous commands.

zsh bash linux shell terminal shortcuts productivity command-line unix macos readline history-expansion navigation keyboard-shortcuts