From a50619388d76832a18b4fc0db9d61f8dd5e3b518 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Thu, 28 May 2026 23:02:34 +0900
Subject: [PATCH] [install] Fix empty-shell detection in install script

${#shells} is the string length, not the shell count.

Thanks to @matheus-pacifico for the report.

Close #4813
---
 install | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/install b/install
index 4102aa12..cab81768 100755
--- a/install
+++ b/install
@@ -233,7 +233,7 @@ for s in $shells; do
   fi
 done
 
-if [[ ${#shells} -lt 3 ]]; then
+if [[ -z "${shells// /}" ]]; then
   echo "No shell configuration to be updated."
   exit 0
 fi