How can i output result to a log file?

Hi all,
In case i have a script file containt tables, functions, ... when i use Query Analyzer to run this file, the result output in a window. Now i want this result output to a file named logfile.txt. How can i do that?
Thanks first.qa has this capability. Options -> Results -> Defaul results to: FILE.

if you want to do it from command line, you can use OSQL. See book online for details.