linux_introduction/readme.md

Hello world

Welcome!

Essential: introduction to linux

• Introduction to Linux
  • Where does Linux originate from?
  • Who is behind this project?
  • What is the deal with 'GNU-slash-Linux'?
  • Where can you get some Linux?
  • Debian
• How to create a virtual machine
• Breakdown of the Debian installation
• Exercise
• Quick look at an idle system
• Package managers
  • Graphical installation
  • Command line installation
  • Adding a secondary desktop environment
• Changing the runlevel
• Exercise
• Guest additions

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Essential: introduction to the commandline

• Introduction to the command line
  • Compiled vs interpreted
  • Note on file extensions
• More about paths
  • Absolute and relative paths
  • root and / and /root are not the same thing
• Exercise
• A pit stop to review what we've learned so far
• Arguments and flags
• Getting help
  • Options
  • Manuals
  • Exercise
• Creating, modifying and deleting
  • Directories
  • Files
  • Links
• Editors
  • nano
    • Exercise
  • vi and vim
    • Exercise
• Opening or peaking into files
• Exercise
• Finding stuff
  • Finding files
    • The easy way
    • The hard way
• Exercise
• Searching inside files
  • Wild cards and regular expressions
    • Wild cards
• Exercise
• Exercise * Regular expressions
• Pipes and redirects
  • Redirecting
    • Input redirection
  • Piping
• Text manipulation
• Ideas
• Exercises
  • Mini exercise 1
  • Mini exercise 2
  • Mini exercise 3
  • Mini exercise 4
  • Mini exercise 5
  • Mini exercise 6
• Ideas

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Essential: introduction to administration

• Users
  • Adding and removing users
    • GNOME
    • command line
  • Switching user
  • Groups
• Permissions
  • Octal number system
  • Changing ownership
  • umask
  • Essential programs
• Remote control of a server
  • History
  • SSH and SFTP
• Bandit

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Advanced: learning bash scripting

• bash
• Using variables to store the output of command
• Coding challenge - Output system stats
• Getting input into the script
  • With read
• Coding challenge - Secret input * read multiple variables * Exercise - unpack values
  • With command line arguments
• Coding Challenge - output the exact output below
• More math!
  • The let keyword
  • The expr keyword
  • Double parenthesis
  • Variable length
• If Statements - How to make decisions within your Bash script.
  • How does it work behind the scenes?
  • exit status
  • test
  • Nested if statements
  • A modern version of test
    • [[ ]]
    • (( ))
    • && and ||
• Coding challenge - File information
• Coding challenge - pipe or argument?
• Loops - A variety of ways to perform repetitive tasks.
  • while loop
    • Read from a file with a while loop
    • Read from a pipe with a while loop
  • for loop
    • Counter loops with for
    • Finicky behaviour
  • break and continue
• Coding challenge - pipe or argument plus action!
• Coding challenge - Rename files
• Coding challenge - Rename jpeg files
• Coding challenge - Remove duplicate files
• Coding challenge - File tree
• Coding challenge - Compare and move
• Coding challenge - Guess the number
• Functions - Reuse code to make life easier.
  • defining a function
  • function arguments
  • global vs local variable
  • return values
  • the command builtin
• Coding challenge - Student reports
• User Interface - Make your scripts user friendly.
• Coding challenge - Address book
• Arrays in bash
  • Python
  • Vim as an IDE

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Advanced: learning shells

• bash login
  • which files are sources when
• A clean slate
• Prompt customization
  • Saving our changes
  • Decoding the base prompt
• Alternative shells
  • zsh
  • fish
  • xonsh
• Shell completion
• Frameworks
  • oh my zsh
  • oh my bash
• xxh

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