unix

Articles: 31

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How to Parse Command Line Arguments in Bash

Bash scripts take in command-line arguments as inputs both sequentially and also, parsed as options. The command-line utilities use these arguments to conditionally trigger functions in a Bash script or selectively choose between environments to execute the script. In Bash, these are configured in different ways. In this article, we...

Sathiya Sarathi Gunasekaran

Oct 07, 2021

Article

Getting Started with GitHub Actions - Software Automation

In this guide, we'll take a look at what GitHub actions are, how they work, and build a workflow using Python to showcase how you can use GitHub actions to automate tasks. Since its inception in 2008, GitHub has grown to become the de facto leader in development project hosting....

Dragan Bjekic

Oct 06, 2021

Article

Linux: Display File Properties via Terminal

We commonly need and want to know more about the files and directories that we are working with. Most people know one of the ways, which is simply to Right Click > Properties on the wanted folder or file to view their properties. Though, for the moore terminal-savvy, here's how...

Guest Contributor

Jul 29, 2021

Article

Pimp my Terminal - An Introduction to "Oh My Zsh"

Using a terminal can be a bit of an intimidating experience in the beginning - but after you get used to it, it can boost your productivity in ways you couldn't imagine and can become quite a pleasurable experience. That's probably the most addicting part of using terminal daily. You...

Dimitrije Stamenic

Jul 23, 2021

Article

Guide to Elasticdump - Moving and Saving Elasticsearch Indices

Elasticsearch initially began as a custom search engine. These days, it has gone above and beyond that singular role as it's part of log aggregation stacks, security monitoring, and even as a datastore for performing exploratory analysis. Indices in Elasticsearch is where the data is stored, and there are often...

Sathiya Sarathi Gunasekaran

Jun 09, 2021

Article

How to Use the Rsync Command in Unix

The digital revolution has changed our lives in many ways. Nowadays, our picture albums, music collections, bookshelves etc. are all digital - binaries written on a disk. Our life and work are shared between a multitude of devices. Companies have development, staging, testing areas and dozens of developers connected to...

Dragan Bjekic

May 03, 2021·5 min read

Article

Guide to Understanding chmod

File access permissions and security are at the heart of *nix-based operating systems. File objects can belong to users and/or groups, and at times they need to be shared with various combinations of those two. There are multiple ways in *nix systems to reinforce secure sharing of these objects....

Sathiya Sarathi Gunasekaran

Apr 26, 2021·7 min read

Article

How to Concatenate String Variables in Bash

Bash utilities make so many tasks simple, but not all tasks have a straightforward command or operator. A very common and usual task in many scripting scenarios is concatenating string variables. Bash doesn't have a built-in function or command-line utility to concatenate two strings together. However, there are many ways...

Sathiya Sarathi Gunasekaran

Apr 16, 2021·3 min read

Article

Get Total Size of a Directory in Linux

In Linux, ls -l would list the files and directories in a particular path, with their names, dates, and sizes (disk usage). The first thing you'll notice using that command is that size of directories is always shown as 4096 bytes (or 4,0K if you're using ls -lh) even...

Ruslan Hasanov

Feb 18, 2021·4 min read