From a7fb251dcba740cb4741e51bcdb9bb4b3972c6bc Mon Sep 17 00:00:00 2001
From: Vidar Holen <vidar@vidarholen.net>
Date: Wed, 30 Dec 2020 20:26:06 -0800
Subject: [PATCH] Created SC2284 (markdown)

---
 SC2284.md | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 SC2284.md

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+## Use [ x = y ] to compare values (or quote '==' if literal).
+
+### Problematic code:
+
+```sh
+if $var == value
+then
+  echo "Match"
+fi
+```
+
+### Correct code:
+
+```sh
+if [ "$var" = value ]
+then
+  echo "Match"
+fi
+```
+
+### Rationale:
+
+ShellCheck found an unquoted `==` after a word.
+
+This was most likely supposed to be a comparison, so use square brackets as in the correct code.
+
+### Exceptions:
+
+If the `==` was supposed to be literal, you can quote it to make ShellCheck ignore it:
+
+    grep '===' file.js
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!
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