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Linux

The terminal habits that separate working engineers from people who tab into the AWS Console. Navigate, observe, and compose by the end.

Hands-on labsbeginner55 labs
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By the end you'll be able to
  • Navigate any unfamiliar Linux box without panic
  • Read what a process is doing without restarting it
  • Pipe small tools together to answer real questions
  • Manage permissions and find files without reaching for sudo

Modules

Work through the labs in order. Each module builds one operating habit.

  1. 01
    What is Linux
    Before you type a single command, understand what Linux is and why DevOps engineers use it every day.
    5 min
    Start
  2. 02
    What is a terminal
    Understand what the black rectangle full of text actually is, and why engineers prefer it to clicking icons.
    5 min
    Start
  3. 03
    Read the prompt
    Decode `learner@dlth:~$`. Each piece tells you something useful before you type a single command.
    5 min
    Start
  4. 04
    The filesystem is a tree
    Linux organises every file in a single tree starting at `/`. See it once and the layout makes sense forever.
    5 min
    Start
  5. 05
    What a command really is
    A command is just a program the shell finds on a list of folders called PATH. Once you see that, the magic dissolves.
    5 min
    Start