From 97b15344729ca9d15518ea7141cf668226baa36e Mon Sep 17 00:00:00 2001
From: Alejandro Cervera <96702705+tricantivu@users.noreply.github.com>
Date: Fri, 28 Jul 2023 21:31:55 -0500
Subject: [PATCH] Add alternative to find substring at the beginning of a
 string

---
 README.md | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/README.md b/README.md
index 8032be5..b3e5958 100644
--- a/README.md
+++ b/README.md
@@ -242,6 +242,27 @@ case $var in
 esac
 ```
 
+**Using printf builtin:**
+
+**Example function:**
+
+```sh
+startswith() {
+
+    if [ "$(printf "%.${#1}s" "$2")" = "$1" ]; then
+        return 0
+    else
+        return 1
+    fi
+}
+```
+
+**Example usage:**
+
+```sh
+$ startswith 'fo' 'foo'
+```
+
 ## Check if string ends with sub-string
 
 **Using a case statement:**