From c4d4d9f31dfc36d4451ddf0fdb481fb3c34de111 Mon Sep 17 00:00:00 2001
From: Yongqiang YANG <dataroaring@gmail.com>
Date: Sat, 31 Aug 2024 23:18:34 +0800
Subject: [PATCH] fix

---
 tools/fdb/fdb_ctr.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/fdb/fdb_ctr.sh b/tools/fdb/fdb_ctr.sh
index 09f98c479098346..6b3961ed9aa9dca 100755
--- a/tools/fdb/fdb_ctr.sh
+++ b/tools/fdb/fdb_ctr.sh
@@ -302,7 +302,7 @@ function clean_fdb() {
 
     # Remove all directories and files under ${FDB_HOME}
     echo "Removing all directories and files under ${FDB_HOME}"
-    rm -rf "${FDB_HOME}"/*
+    rm -rf "${FDB_HOME:?}"/*
 }
 
 function deploy() {
@@ -376,7 +376,7 @@ function usage() {
 function unknown_cmd() {
     local cmd="$1"
 
-    echo "Unknown cmd: ${cmd}\n"
+    printf "Unknown cmd: %s \n" "${cmd}"
     usage
 }