From 82dc2244c00b9de6636eebff2a0ec3dce3bcb174 Mon Sep 17 00:00:00 2001
From: neil <github@byneil.com>
Date: Thu, 17 Nov 2016 13:17:29 +0800
Subject: [PATCH] fix _exists for busybox

---
 acme.sh | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/acme.sh b/acme.sh
index 280cb415..a4a08392 100755
--- a/acme.sh
+++ b/acme.sh
@@ -247,9 +247,12 @@ _exists() {
     _usage "Usage: _exists cmd"
     return 1
   fi
-  if command >/dev/null 2>&1; then
+
+  if eval type type >/dev/null 2>&1; then
+    eval type "$cmd" >/dev/null 2>&1
+  elif command >/dev/null 2>&1; then
     command -v "$cmd" >/dev/null 2>&1
-  elif which ls >/dev/null 2>&1; then
+  elif which which >/dev/null 2>&1; then
     which "$cmd" >/dev/null 2>&1
   fi
   ret="$?"