From 668f5e9d8f91e78facadf6851cef554b9950a529 Mon Sep 17 00:00:00 2001
From: koalaman <vidar@vidarholen.net>
Date: Sun, 10 Nov 2013 12:21:32 -0800
Subject: [PATCH] Created Sc2062 (markdown)

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 Sc2062.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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+# 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.
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