How to create a script file?

[Vasu Thirumalai]

Hi!!

I want to have a sql script to create the tables. i.e. have all the lines that I will 
type at the sql prompt in a script file called create_tables or something and execute 
that file to create the tables !!
How to do ?Is there an editor for mysql where I can type out these lines.
Please help me.
Thank you
Harini