From a54b580e016d882495134f2cade982c3e91b2189 Mon Sep 17 00:00:00 2001
From: hyww <hyww1101@gmail.com>
Date: Sun, 5 Jul 2020 19:04:28 +0800
Subject: [PATCH] bash: Fix substring expansion with negative offset (#947)

Co-authored-by: Rico Sta. Cruz <rstacruz@users.noreply.github.com>
---
 bash.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bash.md b/bash.md
index a25ff354a..d71b56791 100644
--- a/bash.md
+++ b/bash.md
@@ -154,7 +154,7 @@ echo ${STR/foo/bar} # /path/to/bar.cpp
 ```bash
 STR="Hello world"
 echo ${STR:6:5}   # "world"
-echo ${STR:-5:5}  # "world"
+echo ${STR: -5:5}  # "world"
 ```
 
 ```bash