From 0361fa173bbc6e280685743e500cb1a188461110 Mon Sep 17 00:00:00 2001
From: Angus Hollands <goosey15@gmail.com>
Date: Mon, 20 Apr 2020 11:21:31 +0100
Subject: [PATCH] Update bash.md

---
 bash.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bash.md b/bash.md
index 40ed7d768..3f6b85efb 100644
--- a/bash.md
+++ b/bash.md
@@ -1,4 +1,4 @@
----
+(---
 title: Bash scripting
 category: CLI
 layout: 2017/sheet
@@ -217,7 +217,7 @@ echo ${STR^^}  #=> "HELLO WORLD!" (all uppercase)
 | `${FOO:-val}`        | `$FOO`, or `val` if unset (or null) |
 | `${FOO:=val}`        | Set `$FOO` to `val` if unset (or null) |
 | `${FOO:+val}`        | `val` if `$FOO` is set (and not null) |
-| `${FOO:?message}`    | Show error message and exit if `$FOO` is unset (or is null) |
+| `${FOO:?message}`    | Show error message and exit if `$FOO` is unset (or null) |
 
 Omitting the `:` removes the (non)nullity checks, e.g. `${FOO-val}` expands to `val` if unset otherwise `$FOO`.