How to write to file in Ruby - Code Maven.
Writing an application in pure Ruby. By the end of this article we will have our own mini-framework similar to Rails: with MVC, routing, migrations, some configs, all in all, everything like it's supposed to be (or purposed, whatever you like).
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Let's open up our plain-text editor. As far as possible, ensure that your editor's Tab is set to 2 spaces. We are now ready to write our first Ruby program. Code layout is pretty much up to you; indentation is not significant (but using two-character indentation will make you friends in the community if you plan on distributing your code). Create a folder named, say. rubyprograms. We shall.
In my humble oppinion, ruby wasn’t made for such tasks. If you have to write to binary files a lot, it would be easiest to write some c functions for that and call them from ruby, which is quite easy using swig. I’m doing the same thing at the moment to write a raid simulator.
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Want to read or write the normal text file using ruby? There is inbuilt File library with ruby. lets we use that and generate simple .txt file and read that.