Operating systems have "temporary" directory where temporary files can be stored.
Temporary files are created briefly during a program's execution.
Dir.tmpdir provides the path to the temporary directory
require 'tmpdir' puts Dir.tmpdir
You can use Dir.tmpdir with File.join to create a platform-independent way of creating a temporary file:
require 'tmpdir' tempfilename = File.join(Dir.tmpdir, "myapp.dat") tempfile = File.new(tempfilename, "w") tempfile.puts "This is only temporary" tempfile.close # w w w .ja v a 2s . com File.delete(tempfilename)
This code creates a temporary file, writes data to it, and deletes it.
Ruby's standard library includes a library called tempfile that can create temporary files for you:
require 'tempfile' f = Tempfile.new('myapp') f.puts "Hello" # from w w w .j a v a 2s .c om puts f.path f.close