diff --git a/Sc2062.md b/Sc2062.md
new file mode 100644
index 0000000..43baa72
--- /dev/null
+++ b/Sc2062.md
@@ -0,0 +1,12 @@
+# Quote the grep pattern so the shell won't interpret it.
+
+### Problematic code
+    grep foo* file
+
+### Correct code
+    grep "foo*" file
+
+### Rationale
+The regex passed to grep frequently contains characters that collide with globs. The code above is supposed to match "f followed by 1 or more o's", but if the directory contains a file called "foo.txt", an unquoted pattern will cause it to become `grep foo.txt file`.
+
+To prevent this, always quote the regex passed to grep, especially when it contains one or more glob character.
\ No newline at end of file