Reading and updating YAML file by ruby code

Question

I have written a yml file like this:

last_update: \'2014-01-28 11:00:00\'

I am reading this file as

config = YAML.load(\'c         


        

Answer 1

Switch .load to .load_file and you should be good to go.

#!/usr/bin/env ruby
require 'yaml'
config = YAML.load_file('data.yml')
puts config['last_update']

After running this is what I get

orcus:~ user$ ruby test.rb
# ⇒ some_data

To write the file you will need to open the YAML file and write to the handle. Something like this should work.

require 'yaml'
config = YAML.load_file('data.yml')
puts config['last_update'] #in my file this is set to "some data"
config['last_update'] = "other data"
File.open('data.yml','w') do |h| 
   h.write config.to_yaml
end

Output was

orcus:~ user$ ruby test.rb
some data
orcus:~ user$ cat data.yml
---
last_update: other data