fix:shell script

tools/misc/renamedb.sh

@@ -2,8 +2,9 @@
 
 dbuser=root
 dbpasswd=1000omc@kp!
+dbhost=127.0.0.1
 
-mysql -u$dbuser -p$dbpasswd -e 'create database if not exists $2;'
+mysql -u$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'")
 
 for table in $list_table