how to create a new file in selenium ?
And also how can i write a data into the newly created file ?
How does selenium IDE & Selenium RC differs ?
how to create a new file in selenium ?
And also how can i write a data into the newly created file ?
How does selenium IDE & Selenium RC differs ?
Assuming from your last question and your comments there, you want to get some text from a page and save it in a file.
I might be wrong, but I think you can't do that in Selenium IDE and will need the full power of a programming language in Selenium RC (which has been officially deprecated like a year ago) or Selenium WebDriver.
Once you're using one or another in any language you like (currently C#, Java, Ruby, Perl and PHP are supported), you can use the language's standard tools to write into a file.
Regarding your file questions, it's not clear whether you are referring to test files, files on the Selenium server, or files on the clients which run the browsers driven by Selenium.
Regarding Selenium IDE vs RC, that question is already answered at:
What is the difference between Selenium IDE, Server, RC, 2.0, and WebDriver?.