Create a file: Open a file in write mode
ruby-1.9.2-p290 :058 > f = File.open(“my_file.txt”, “w”)
Write something to that file
ruby-1.9.2-p290 :059 > f.write(“This is the first line of my file\n”)
Close the file
ruby-1.9.2-p290 :060 > f.close
Open the file for reading
ruby-1.9.2-p290 :061 > f = File.open(“my_file.txt”, “r”)
ruby-1.9.2-p290 :062 > f.read
=> “This is the first line of my file.\n”
Print the first line of a file
ruby-1.9.2-p290 :063 > lines = IO.readlines(“my_file.txt”)
ruby-1.9.2-p290 :063 > puts lines.first
This is the first line of my file.
A useful link about ruby File manupulation is given below
I'm Abhilash, a web developer who specializes in Ruby development. With years of experience working with various frameworks like Rails, Angular, Sinatra, Laravel, NodeJS, React and more, I am passionate about building robust and scalable web applications.
Since 2010, I have been honing my skills and expertise in the Ruby on Rails platform. This blog is dedicated to sharing my knowledge and experience on topics related to Ruby, Ruby on Rails, and other subjects that I have worked with throughout my career. Join me on this journey to explore the exciting world of web development!
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