From 35fd3f01678c63593b80c4abbf1691a79fed2dfe Mon Sep 17 00:00:00 2001
From: Google Shell Style team <noreply@google.com>
Date: Mon, 18 May 2020 11:19:09 -0700
Subject: [PATCH] Project import generated by Copybara.

PiperOrigin-RevId: 312117514
---
 shellguide.md | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/shellguide.md b/shellguide.md
index 702c751..6978a98 100644
--- a/shellguide.md
+++ b/shellguide.md
@@ -1253,17 +1253,17 @@ We prefer the use of builtins such as the *Parameter Expansion*
 functions in `bash(1)` as it's more robust and portable
 (especially when compared to things like `sed`).
 
-Example:
+Examples:
 
 ```shell
 # Prefer this:
-addition=$(( ${X} + ${Y} ))
+addition=$(( X + Y ))
 substitution="${string/#foo/bar}"
 ```
 
 ```shell
 # Instead of this:
-addition="$(expr ${X} + ${Y})"
+addition="$(expr "${X}" + "${Y}")"
 substitution="$(echo "${string}" | sed -e 's/^foo/bar/')"
 ```