From a0e1cd6e4c95b1a4174264b8f25868627df91784 Mon Sep 17 00:00:00 2001
From: Jonathan Dahan <github@jonathan.is>
Date: Mon, 6 Sep 2021 09:32:25 -0400
Subject: [PATCH] Created SC3010 (markdown)

---
 SC3010.md | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 SC3010.md

diff --git a/SC3010.md b/SC3010.md
new file mode 100644
index 0000000..4a3aa19
--- /dev/null
+++ b/SC3010.md
@@ -0,0 +1,4 @@
+
+    In POSIX sh, [[ ]] is undefined.
+
+POSIX sh uses `[ ]` instead. To see the limitations/differences, view http://mywiki.wooledge.org/BashFAQ/031 
\ No newline at end of file