From 487d7c69cd30c85032844c659fa7efabe7bec136 Mon Sep 17 00:00:00 2001
From: koalaman <vidar@vidarholen.net>
Date: Sun, 10 Nov 2013 11:19:41 -0800
Subject: [PATCH] Created SC1000: $ is not used specially and should therefore
 be escaped. (markdown)

---
 ...-specially-and-should-therefore-be-escaped..md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 SC1000:-$-is-not-used-specially-and-should-therefore-be-escaped..md

diff --git a/SC1000:-$-is-not-used-specially-and-should-therefore-be-escaped..md b/SC1000:-$-is-not-used-specially-and-should-therefore-be-escaped..md
new file mode 100644
index 0000000..525859e
--- /dev/null
+++ b/SC1000:-$-is-not-used-specially-and-should-therefore-be-escaped..md
@@ -0,0 +1,15 @@
+### Rationale:
+`$` is special in double quotes, but there are some cases where it's interpreted literally:
+
+1. Following a backslash: `echo "\$"`
+2. In a context where the shell can't make sense of it, such as at the end of the string, (`"foo$"`) or before some constructs (`"$'foo'"`). 
+
+To avoid relying on strange and shell specific behavior, any `$` intended to be literal should be escaped with a backslash.
+
+### Problematic sample code:
+
+    echo "$"
+
+### Correct sample code:
+
+    echo "\$"