From 055bbc879041770cc3a14a83117e1c9073f65170 Mon Sep 17 00:00:00 2001
From: Bonnie I-Man Ng <nim.1111.ou@gmail.com>
Date: Wed, 10 Jul 2019 16:40:14 +0800
Subject: [PATCH] add to "variable" section

eval command to expand and execute variables
---
 README.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.md b/README.md
index 4c89438..fea08de 100644
--- a/README.md
+++ b/README.md
@@ -987,6 +987,14 @@ echo ${var,,}
 helloworld
 ```
 
+
+##### Expand and then execute variable/argument
+```bash
+cmd="bar=foo"
+eval "$cmd"
+echo "$bar" # foo
+```
+
 ## Math
 [[back to top](#handy-bash-one-liners)]
 ##### Arithmetic Expansion in Bash (Operators: +, -, *, /, %, etc)