From 300215c3eaf141f7f1f9d628edfdc6f6efbb58d9 Mon Sep 17 00:00:00 2001
From: koalaman <vidar@vidarholen.net>
Date: Sun, 16 Mar 2014 14:49:36 -0700
Subject: [PATCH] Created SC2122 (markdown)

---
 SC2122.md | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 SC2122.md

diff --git a/SC2122.md b/SC2122.md
new file mode 100644
index 0000000..594ade4
--- /dev/null
+++ b/SC2122.md
@@ -0,0 +1,17 @@
+## >= is not a valid operator. Use '! a > b' instead.
+
+### Problematic code:
+
+    [[ a <= b ]]
+
+### Correct code:
+
+    [[ ! a > b ]]
+
+### Rationale:
+
+The typical operators `<=` and `>=` are not supported by Bourne shells. Instead of "less than or equal", rewrite as "not greater than". 
+
+### Contraindications
+
+None
\ No newline at end of file