The UNIX Pipe Card Game

This is a card game for teaching kids how to combine unix commands through pipes.

This game assumes the parent knows the basic unix commands: cat, grep, tail, head, wc, sort, uniq. The parent should show also show those commands in action the computer as well, if you do not have any UNIX system you can use jslinux in your browser.
Buy now: €5,00 EUR
If you are a parent teaching your kid, and is exploring more tools to help you, I made few other card games:
If you want to play the more difficult version, you can also get the Expansion pack: UNIX Pipe Game - Process Substitution

Example game round:
task: print the most common line from a file, we need to first cat the file (in our case the file is card 03.txt), then sort it, uniq count it, then do numeric sort, then tail -1:

cat 03.txt | sort | uniq -c | sort -n | tail -1

                 RULES:

> 0. The youngest player chooses one of
  two formats for the game:

* Whoever has the smallest pipe chain to 
  complete the task wins the round.
* Whoever has the largest pipe chain to 
  complete the task wins the round.

> 1. The youngest player picks a task
  from the tasks card. You can not pick
  the same task twice.

> 2. Shuffle the cards.

> 3. Put the cards face down on the
  table.

> 4. Going clockwise each player picks
  the top card from the deck and tries 
  to complete the task.

> 5. The first player who completes the
  task gets a point.

> 6. IF there are no more tasks, GOTO 8

> 7. GOTO 1.

> 8. GAME OVER. INSERT COIN. GOTO 8

TASKS

  * print the second line

  * print the second to last line

  * print the 7th line

  * print the most common line

  * print the least common line

  * count how many lines have "rises"

  * print the first line that has W in it

  * count the lines that have "in" in them

  * show two random lines

  * count the words on the last two lines

  * print the 7th and 8th line

  * count the lines with !

  * count the lines without !

  * make a command chain that does not
    print anything
This is how the card decks look: