From c63bdba955d19281b5fc8b07c03194c739b40781 Mon Sep 17 00:00:00 2001
From: SeekingBlues <seekingblues@gmail.com>
Date: Wed, 13 Oct 2021 19:58:48 -0400
Subject: [PATCH] shuf: Fix division by zero when no lines are read

---
 Userland/Utilities/shuf.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Userland/Utilities/shuf.cpp b/Userland/Utilities/shuf.cpp
index 2833f7d383..d1a216c5ca 100644
--- a/Userland/Utilities/shuf.cpp
+++ b/Userland/Utilities/shuf.cpp
@@ -36,6 +36,9 @@ int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv)
     }
     free(buffer);
 
+    if (lines.is_empty())
+        return 0;
+
     // Fisher-Yates shuffle
     String tmp;
     for (size_t i = lines.size() - 1; i >= 1; --i) {