Temporary files and directories in Ruby

July 23, 2020 One-minute read

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Create a temporary file in your current directory:

require 'tempfile'

Tempfile.create('', Dir.pwd) do |file|
  puts File.path(file)

  File.write(file, 'I am temporary!')
  puts File.read(file)
end

For directory it’s similar, but no require needed:

Dir.mktmpdir(nil, Dir.pwd) do |dir|
  puts File.path(dir)
end