DYDharamraj Yadavindharamin.hashnode.dev·1d ago · 13 min readMastering systemd, SSH, and Package ManagementWeek 5 of My DevSecOps Journey — systemd, SSH & Package Management This week was all about how a Linux server actually works behind the scenes. Three big things: how Linux runs services in the backgro00
DYDharamraj Yadavindharamin.hashnode.dev·Jul 11 · 5 min readMy First Bash Scripts: From Zero to Production-QualityWhat a bash script is Bash script is a box of commands that used to run multiple commands at a time. The Shebang (#!/bin/bash) This is the very first line of the script that determine the shell, and b00
DYDharamraj Yadavindharamin.hashnode.dev·Jul 6 · 2 min readUnderstanding File Descriptors & Redirection in LinuxFile Descriptors What is a File Descriptors A file descriptor is simply a non-negative integer that the opreting system uses to identify an open file or I/O resources. in linux eveything is treating a00
DYDharamraj Yadavindharamin.hashnode.dev·Jun 27 · 5 min readHow Linux Actually Runs Your Programs: Processes, Signals & systemd in Plain EnglishSignals What is signlas Signals are mechanism to communicate between kernel and processes, and between processes. For example if we want to STOP the process we send SIGSTOP(kill STOP ) Signal and kern00
DYDharamraj Yadavindharamin.hashnode.dev·Jun 21 · 6 min readI Thought I Knew Linux — Then I Actually Learned It (Week 1)The Big Picture Before you read this doc you must know english is my second language and this doc is have completely my own words not any AI, translator etc. What an OS really is An Operating System00
