mysql get table column names in alphabetical order

Question

Is it possible to query a MySQL database to get the column names of a table in alphabetical order? I know that

SHOW COLUMNS `table_name`;

Answer 1

Every field was listed twice until I used group by column name

 select c.COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS c 
 where c.TABLE_NAME = `'tbl_name'` 
 group by c.column_name 
 order by c.column_name