From 3c4ab729107bade539671447eee2e0e6817641b3 Mon Sep 17 00:00:00 2001
From: koalaman <vidar@vidarholen.net>
Date: Sun, 2 Mar 2014 11:07:00 -0800
Subject: [PATCH] Created SC2048 (markdown)

---
 SC2048.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 SC2048.md

diff --git a/SC2048.md b/SC2048.md
new file mode 100644
index 0000000..e955c88
--- /dev/null
+++ b/SC2048.md
@@ -0,0 +1,25 @@
+## Use "$@" (with quotes) to prevent whitespace problems.
+
+### Problematic code:
+
+    cp $* ~/dir
+
+### Correct code:
+
+    cp "$@" ~/dir
+
+### Rationale:
+
+`$*`, unquoted, is subject to word splitting and globbing.
+
+Let's say you have three arguments: `baz`, `foo bar` and `*`
+
+`"$@"` will expand into exactly that: `baz`, `foo bar` and `*`
+
+`$*` will expand into multiple other arguments: `baz`, `foo`, `bar`, `file.txt` and `otherfile.jpg`
+
+Since the latter is rarely expected or desired, ShellCheck warns about it.
+
+### Contraindications
+
+None. 
\ No newline at end of file