Chefのレシピでsed的な事を実施 ref: http://qiita.com/sawanoboly/items/355288c4592bdf4a3550

apply.rb

file './tmp1' do
  _file = Chef::Util::FileEdit.new(path)
  _file.search_file_replace_line('^hoge', "piyopiyo\n")
  content _file.send(:contents).join
end

file './tmp2' do
  _file = Chef::Util::FileEdit.new(path)
  _file.search_file_replace('ge', "ga")
  content _file.send(:contents).join
end

apply2.rb

## 11.12.0以降のクライアント
file './tmp1' do
  _file = Chef::Util::FileEdit.new(path)
  _file.search_file_replace_line('^hoge', "piyopiyo\n")
  content _file.send(:editor).lines.join
end

file './tmp2' do
  _file = Chef::Util::FileEdit.new(path)
  _file.search_file_replace('ge', "ga")
  content _file.send(:editor).lines.join
end

Chef

pry(main)> Chef::Util::FileEdit.instance_methods(false)
=> [:search_file_replace_line,
 :search_file_replace,
 :search_file_delete_line,
 :search_file_delete,
 :insert_line_after_match,
 :insert_line_if_no_match,
 :write_file]

chef-apply(conversion)

$ chef-apply appry.rb 
Recipe: (chef-apply cookbook)::(chef-apply recipe)
  * file[./tmp1] action create
    - update content in file ./tmp1 from 639ed8 to 55d5ca
        --- ./tmp1  2013-08-20 00:45:11.000000000 +0900
        +++ /var/folders/s9/kwcs_8ln0d32v_n4hdfb7td00000gn/T/.tmp120130820-24938-1bwvf6g    2013-08-20 00:45:41.000000000 +0900
        @@ -1,2 +1,2 @@
        -hogehoge
        +piyopiyo
         mogemoge
  * file[./tmp2] action create
    - update content in file ./tmp2 from 639ed8 to 93260c
        --- ./tmp2  2013-08-20 00:45:03.000000000 +0900
        +++ /var/folders/s9/kwcs_8ln0d32v_n4hdfb7td00000gn/T/.tmp220130820-24938-h5bq4k 2013-08-20 00:45:41.000000000 +0900
        @@ -1,2 +1,2 @@
        -hogehoge
        -mogemoge
        +hogahoga
        +mogamoga

chef-apply(dry_run)

$ chef-apply appry.rb -w
Recipe: (chef-apply cookbook)::(chef-apply recipe)
  * file[./tmp1] action create
    - Would update content in file ./tmp1 from 639ed8 to 55d5ca
        --- ./tmp1  2013-08-20 00:45:11.000000000 +0900
        +++ /var/folders/s9/kwcs_8ln0d32v_n4hdfb7td00000gn/T/.tmp120130820-24879-gemfn5 2013-08-20 00:45:19.000000000 +0900
        @@ -1,2 +1,2 @@
        -hogehoge
        +piyopiyo
         mogemoge
  * file[./tmp2] action create
    - Would update content in file ./tmp2 from 639ed8 to 93260c
        --- ./tmp2  2013-08-20 00:45:03.000000000 +0900
        +++ /var/folders/s9/kwcs_8ln0d32v_n4hdfb7td00000gn/T/.tmp220130820-24879-ieq0kc 2013-08-20 00:45:19.000000000 +0900
        @@ -1,2 +1,2 @@
        -hogehoge
        -mogemoge
        +hogahoga
        +mogamoga

chef-apply(up_to_date)

$ chef-apply appry.rb 
Recipe: (chef-apply cookbook)::(chef-apply recipe)
  * file[./tmp1] action create (up to date)
  * file[./tmp2] action create (up to date)

Chef::Util::FileEdit.instance_methods(false)

pry(main)> Chef::Util::FileEdit.instance_methods(false)
=> [:search_file_replace_line,
 :search_file_replace,
 :search_file_delete_line,
 :search_file_delete,
 :insert_line_after_match,
 :insert_line_if_no_match,
 :write_file]

file7.txt

  clock = Chef::Util::FileEdit.new("/etc/sysconfig/clock")
  clock.search_file_replace_line(/^ZONE=.*$/, "ZONE=\"#{node[:tz]}\"")
  clock.write_file

tmp1,tmp2

hogehoge
mogemoge