MySQL General query log without restart

gistfile1.sql

/* mysql -u root */

SET GLOBAL log_output=FILE;
SET GLOBAL general_log=ON;

show variables like 'general_log%';

/*
+------------------+------------------------------+
| Variable_name    | Value                        |
+------------------+------------------------------+
| general_log      | ON                           |
| general_log_file | /var/lib/mysql/localhost.log |
+------------------+------------------------------+
*/