From 5ec4620664a30b4f04b2805184221ed29c7ea7fe Mon Sep 17 00:00:00 2001
From: Andy Heathershaw <aheathershaw@noreply.andysh.uk>
Date: Fri, 3 May 2019 22:28:21 +0100
Subject: [PATCH] Added additional boundary checking to grep commands

---
 linode-cleanup-hook.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linode-cleanup-hook.sh b/linode-cleanup-hook.sh
index f06e826..f249747 100644
--- a/linode-cleanup-hook.sh
+++ b/linode-cleanup-hook.sh
@@ -3,7 +3,7 @@
 #echo $CERTBOT_VALIDATION
 #echo $CERTBOT_TOKEN
 
-DOMAIN_ID=`linode-cli domains list|grep $CERTBOT_DOMAIN|awk -F' ' '{print $2}'`
-RECORD_ID=`linode-cli domains records-list $DOMAIN_ID|grep _acme-challenge|grep $CERTBOT_VALIDATION|awk -F' ' '{print $2}'`
+DOMAIN_ID=`linode-cli domains list|grep -e "\s$CERTBOT_DOMAIN\s"|awk -F' ' '{print $2}'`
+RECORD_ID=`linode-cli domains records-list $DOMAIN_ID|grep -e "\s_acme-challenge\s"|grep -e "\s$CERTBOT_VALIDATION\s"|awk -F' ' '{print $2}'`
 
 linode-cli domains records-delete $DOMAIN_ID $RECORD_ID