How to Lock Your Mac Screen from the Command Line (And Why You Should)
If you use macOS and spend a lot of time in the terminal, you might be surprised to learn that you can lock your screen with a simple Bash……
$ grep -rn "#Linux" ./posts
Linux: how to delete a file only when is not used by any process
When working on Linux systems — whether servers in production, development machines, or even embedded devices — you’ll eventually run into……
Learn Go by creating a tool — Part 2
In the previous part https://medium.com/@kpatronas/learn-go-by-creating-a-tool-part-1-4ce3f9258027 of the series we saw how we can create……
Invisible Scripts! Run commands hidden in image files.
In this article i will show you how to hide shell commands inside image files and how to run them, the purpose of this article is not to do……
Run a Cron Job Only If Network Is Up
Sometimes you want a scheduled task to run only when you’re online — for example, syncing backups, pulling data from an API, or uploading……
Learn Go by creating a tool — Part 1
In this series of articles we will learn how to create a tool in Go, by following this tutorial will not learn you Go from zero, nor will……
Handling Cross-Platform sed Compatibility in Shell Scripts
When writing shell scripts that need to run across different operating systems, it’s important to consider platform-specific differences……
How to extract an ini section using sed and export them as environment variables
Assume that you have an ini configuration file and you need to export various sections as environment variables to be used from your……
How to Dynamically Adjust Process Limit Quotas in Linux
Imagine that you have an Apache web server that acts as a proxy, for years everything worked well and smoothly.. but out of the blue you……
Summarize File Sizes by Directory and File Name Pattern in Linux
Analyzing file sizes in Linux can be challenging, especially when you want to group them by directory and filter them using a specific……