seed: curriculum content

1.solar-system/1.welcome/09.the-scripter/index.md

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+---
+type: challenge
+title: "The Scripter"
+xp: 100
+duration: 35
+difficulty: 3
+---
+
+# The Scripter
+
+> **[INCOMING — Mission Control, Earth]**
+>
+> Cadet, time to combine commands. Bash lets you embed the output of
+> one command inside another using `$(...)` — *command substitution*:
+>
+> ```bash
+> echo "Today is $(date '+%Y-%m-%d')"
+> # → Today is 2026-05-04
+> ```
+>
+> When your script runs, a directory `supplies/` exists with several
+> files. Produce `report.txt` containing exactly two lines:
+>
+> ```
+> Date: <today in YYYY-MM-DD format>
+> Files in supplies: <count of entries in supplies/>
+> ```
+>
+> Two helpers:
+>
+> - `date '+%Y-%m-%d'` — today in the right format
+> - `ls supplies | wc -l | tr -d ' '` — entry count, whitespace stripped
+>
+> [END TRANSMISSION]
+
+## Your Task
+
+In `starter/starter.sh`, use `echo` + `$(...)` substitution to
+produce the two-line report.
+
+## Objectives
+
+- `report.txt` exists
+- Line 1 matches `Date: <today>`
+- Line 2 matches `Files in supplies: <count>`