02-Unix | Ownership and Permission

CLI, Shell

📅 Feb 12, 2021

Part 1: Ubuntu Users and Groups

Linux is a multi-user operating system. This means multiple people can be logged in and working on the same system simultaneously, and the system needs a way to differentiate their access.

1. Types of Users

Root User (Superuser):

The King/Queen: This is the most powerful user account (root). It has absolute, unrestricted access to the entire system.

UID 0: The root user always has a User ID (UID) of 0.

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03-Unix | Basic Commands

Bread and Butter Commands - all important

📅 Feb 13, 2021

Bread and Butter Commands - all important

  • This article provides practical examples of most frequently used commands in Linux/UNIX.
man - Super Important
cd ( Understand flags - dot ., double dot .., tilda~, dash -)
mkdir, mv
cp with recursive flag
ls with different flags
pwd, rm, sudo, apt
touch, cat, less, more
tail, rsync, grep
find - Super Important
sort, date, wc
tree (needs to be installed additionally)
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