Skip to content
CodeItRaw
Path

Driving a computer from the keyboard: moving around, reading and moving files, and joining commands with pipes.

Key ideas

  • Every command is command -option argument; with pwd, ls and cd you always know where you are.
  • | feeds one command's output to the next: small tools combine into big jobs.
  • > writes to a file (replacing it), >> appends; * picks many files at once.

Pattern

grep ERROR logs/*.log | sort | uniq -c | sort -rn > report.txt

Lessons

Each lesson explains one idea from zero and ends with a few tasks. Lessons open in order; the explanation can be read at any time.

  1. 01

    Where am I, and what is here?

    0/2 tasks

  2. 02

    Making, writing, moving

    0/3 tasks

  3. 03

    Choosing by pattern, and finding files

    0/2 tasks

  4. 04

    Reading long files: tail and grep

    0/2 tasks

  5. 05

    The pipeline: joining commands together

    0/3 tasks

Boss

  • 06

    Log clean-up

    Terminal task

    • The boss opens when every lesson of the topic is finished. Solve it too and the topic is complete, and the topics after it open.