From 7a5d18e4ed27031ad359c297392f3a523553c351 Mon Sep 17 00:00:00 2001
From: Joachim Ansorg <github@ja-dev.eu>
Date: Mon, 31 Oct 2022 15:30:25 +0100
Subject: [PATCH] Updated SC3009 (markdown)

---
 SC3009.md | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/SC3009.md b/SC3009.md
index 974067f..7748c96 100644
--- a/SC3009.md
+++ b/SC3009.md
@@ -1,9 +1,21 @@
-**In POSIX `sh`, brace expansion is undefined.**
+## In POSIX `sh`, brace expansion is undefined.
+
+### Problematic code:
 
-Problematic code:
 ```
 #!/bin/sh
 
 for i in {1..5}; do ...
 ```
+
 Here, `$i` expands to `{1..5}`. It does **not** expand to the sequence `1 2 3 4 5`
+
+### Correct code:
+
+For simple sequences of numbers, you may use the `seq` command, e.g. `seq 1 5`.
+
+### Rationale:
+
+### Exceptions:
+
+None