How do I move a file with Ruby?

You can use FileUtils to do this.

#!/usr/bin/env ruby

require 'fileutils'

FileUtils.mv('/tmp/your_file', '/opt/new/location/your_file')

Remember; if you are moving across partitions, "mv" will copy the file to new destination and unlink the source path.

FileUtils.move

require 'fileutils'
FileUtils.move 'stuff.rb', '/notexist/lib/ruby'

Use the module 'fileutils' and use FileUtils.mv:

http://www.ruby-doc.org/stdlib-2.0/libdoc/fileutils/rdoc/FileUtils.html#method-c-mv