Ruby Language File and I/O Operations Writing a string to a file
Example
A string can be written to a file with an instance of the File class.
file = File.new('tmp.txt', 'w')
file.write("NaNaNaNa\n")
file.write('Batman!\n')
file.close
The File class also offers a shorthand for the new and close operations with the open method.
File.open('tmp.txt', 'w') do |f|
f.write("NaNaNaNa\n")
f.write('Batman!\n')
end
For simple write operations, a string can be also written directly to a file with File.write. Note that this will overwrite the file by default.
File.write('tmp.txt', "NaNaNaNa\n" * 4 + 'Batman!\n')
To specify a different mode on File.write, pass it as the value of a key called mode in a hash as another parameter.
File.write('tmp.txt', "NaNaNaNa\n" * 4 + 'Batman!\n', { mode: 'a'})
