diff --git a/tools/misc/renamedb.sh b/tools/misc/renamedb.sh
index 39068167..1f4fabec 100644
--- a/tools/misc/renamedb.sh
+++ b/tools/misc/renamedb.sh
@@ -2,11 +2,16 @@
 
 dbuser=root
 dbpasswd=1000omc@kp!
+dbhost=127.0.0.1
 
-mysql -u$dbuser -p$dbpasswd -e 'create database if not exists $2;'
-list_table=$(mysql -u$dbuser -p$dbpasswd -Nse "select table_name from information_schema.TABLES where TABLE_SCHEMA='$1'")
+if [ $3 =~ ""]; then
+    dbhost=$3
+fi
+
+mysql -u$dbuser -p$dbpasswd -h $dbhost -e "create database if not exists $2;"
+list_table=$(mysql -u$dbuser -p$dbpasswd -h $dbhost -Nse "select table_name from information_schema.TABLES where TABLE_SCHEMA='$1'")
 
 for table in $list_table
 do
-    mysql -u$dbuser -p$dbpasswd -e "rename table $1.$table to $2.$table"
+    mysql -u$dbuser -p$dbpasswd -h $dbhost -e "rename table $1.$table to $2.$table"
 done
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diff --git a/tools/misc/rmexpiredfile.sh b/tools/misc/rmexpiredfile.sh
index 8b88938d..7e17caca 100644
--- a/tools/misc/rmexpiredfile.sh
+++ b/tools/misc/rmexpiredfile.sh
@@ -46,6 +46,3 @@ else
 fi
 done
 echo '删除完成！'>> ${printFile} 
-————————————————
-版权声明：本文为CSDN博主「Mar5342」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
-原文链接：https://blog.csdn.net/mar5342/article/details/109121623
\ No newline at end of file