single quote escape for bash

sq_escape.rb

def sq_escape(str)
  str.split(/\'/).map{|s| "'#{s}'"}.join("\\'") 
end
sq_escape {"breakfast"=>"Bill's"}.to_json
#=> "'{\"breakfast\":\"Bill'\\''s\"}'"
puts sq_escape {"breakfast"=>"Bill's"}.to_json
#=> '{"breakfast":"Bill'\''s"}'

# # on bash
# $ echo '{"breakfast":"Bill'\''s"}'
# {"breakfast":"Bill's"}