From b1a8eb1c9573f285c33ef9226d9a84de9ab1419a Mon Sep 17 00:00:00 2001
From: neil <github@neilpang.com>
Date: Thu, 20 Aug 2026 08:40:49 +0800
Subject: [PATCH] installcronjob: match the stale cron path without grep -F

---
 acme.sh | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/acme.sh b/acme.sh
index 5a8edab6..20a12992 100755
--- a/acme.sh
+++ b/acme.sh
@@ -7081,9 +7081,19 @@ _filter_cron_bin() {
     cat
     return
   fi
-  #-F: binpath is a literal, not a regex (the dot of ~/.acme.sh would
-  #otherwise match any character)
-  grep -v -F "$_fcb_bin --cron"
+  #a case pattern with a quoted variable matches binpath literally, which
+  #grep cannot do portably: Solaris /usr/bin/grep has no -F, and as a regex
+  #the dot of ~/.acme.sh would stand for any character
+  while IFS= read -r _fcb_line || [ -n "$_fcb_line" ]; do
+    case "$_fcb_line" in
+    *"$_fcb_bin --cron"*)
+      _debug3 "Dropping cron entry" "$_fcb_line"
+      ;;
+    *)
+      echo "$_fcb_line"
+      ;;
+    esac
+  done
 }
 
 #confighome