Linux on Sagar Panda | DevOps & Cloud Infra Engineer

Fortify Your Security with CrowdSec — A Quick Start Guide

Mon, 30 Sep 2024 19:26:10 +0530

What is CrowdSec:

CrowdSec is an open-source security tool designed to help protect servers and applications from cyberattacks. It works by analyzing logs from your systems to detect suspicious activity, such as brute-force attempts, and then takes action to block or prevent those threats.

The Essential Role of Exit Codes in Bash Scripting

Wed, 26 Jun 2024 19:26:10 +0530

What are exit codes in linux

In Linux and Unix-like systems, an exit code is a numeric value returned by a command or a script after completion. It indicates the success or failure of the command or script execution.

Linux Terminal tips - Part 2

Tue, 28 May 2024 19:26:10 +0530

1. Reverse search cmds:

To reuse a command, use Ctrl + R and type a few matching keywords to see the recently used cmds being shown up. The search is based on the command history.

Linux Terminal tips - Part 1

Sun, 05 May 2024 19:26:10 +0530

Introduction:

In the labyrinth of Linux commands, managing tasks can be daunting. Fear not! Here are some handy tips and tricks up your sleeve to streamline your day-to-day operations, making every task a breeze

1. Clearing terminal:

Use Ctrl + L to clean the terminal instead of typing clear every time.

If Statement - Conditional in Bash Scripting

Fri, 22 Mar 2024 19:26:10 +0530

Intro:

So, what’s the deal with ‘if’ statements? Think of them as the script’s way of making decisions. It’s like having a little script buddy that can say, “Hey, if this thing happens, do this. Otherwise, try something else!”

Variables and Math Functions in Bash

Sun, 10 Mar 2024 19:26:10 +0530

What is a variable:

A variable is a container where we can store some value which have possibility to change.

Just like any other programming language, bash also has variables, in fact we saw one default variable in the 1st chapter which is $SHELL. There are many other default variables such as $HOME, $PWD, $PATH, $USER etc.

Introduction to Shell Scripting for Beginners

Thu, 29 Feb 2024 19:26:10 +0530

What’s Shell:

In simple terms shell is a program that takes input as commands and passes the operating system (OS) to perform the desired task.