linux101-references.md

🌐 Linux101 References

• Linux101 Course
• TCM Linux101-Resources - by Brent Eskridge
  • Supplementary exercises

Introduction

• Linux Distributions Timeline
  • Ubuntu
  • Kali
  • ParrotOS
• VirtualBox Ubuntu Installation

Command Line basics

• The Linux man-pages project
• Explain-Shell
• Shell-How
• Command-not-found
• ls
• less
• cat
• Bash Aliases

Files and the Filesystem

• Filesystem Hierarchy Standard

• FHS - Wikipedia

• df

• du

  • Size of a directory

• Absolute vs Relative Path

• cp

• rm

• Shell Expansions

• tail

• diff

• Soft Link And Hard Link

• tar

• gzip

• find

• which

• locate

Users and Groups

• UID
• who
• /etc/passwd
• /etc/shadow
• /etc/group
• Linux File Permissions
• chmod
  • chmod Calculator
• chown
• sudo
• passwd
  • root password

Installing Software

• Deb Packages install
• apt
• Rpm Packages install
• yum
• gcc
• checkinstall

Shell basics

• Common Shells
• Bash
• zsh
  • Oh My Zsh
• Learn Shell
• Environment Variables
• Bash Startup Files
• Bash Write to File
• History

Utilities and File editors

• grep

  • Regex in Grep

• sort

• wc

• sed

  • sed Manual - gnu.org

• awk

  • awk Manual - gnu.org

• tr

• ping

• ifconfig

• ip

• Listening Ports

• scp

• rsync

  • rsync over SSH

• file

• nano editor

  • nano usage

  • nano keyboard shortcuts

• vim

  • vim help files
  • vim cheat sheet

Process Management

• ps
  • pstree
• top
  • htop
• jobs-fg-bg Background processes
• Zombie Process
• Kill a Process
  • kill
  • pkill
• sleep
• crontab.guru
  • crontab
  • List cron jobs
• Linux Run Levels
  • Ubuntu Bootup

Regular Expressions

• grep Regular Expressions
  • grep regex examples
• Online RegExr tool
• Regex101 tool
• Cyrilex tool
• EmailRegex Examples

Bash Scripting

• Bash Shell Scripting - Wikibooks
• shebang

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