How to drop all tables under database in MySQL

How to delete all tables under a database in MySQL

SELECT concat('DROP TABLE IF EXISTS ', table_name, ';')
-> FROM information_schema.tables
-> WHERE table_schema = 'u';

Results in Xshell

Why does VMware report an error with this command, but the result can be displayed in Xshell?
In Xshell, only a statement to delete a table can appear, but in WMware, copy and paste cannot be performed. How to use one command in WMware to delete all tables under the database?