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**Category:** ruby-talk\
**Created:** [24 January 2008 10:14 UTC](https://rubytalk.org/t/htmldiff-between-2-files/44013 "2008-01-24T10:14:06Z")\
**Posts on this page:** 3\
**Page:** 1
**Author:**  [@Janus\_Woze](https://rubytalk.org/u/Janus_Woze)\
**Post date:** [24 January 2008 10:14 UTC](https://rubytalk.org/t/htmldiff-between-2-files/44013/1 "2008-01-24T10:14:06Z")
Dear all,
I'm looking a existing ruby script that will allow me to create a html
diff between 2 existing text files.
I already found similar scripts but what I need is to have 2 colons: on
the left for the first file, on the right for the second file.
Ideally you will have colors (green & red) to see the differences:
\* added and removed lines
\* change inside a line (word remove, spelling mistake,..)
The trac tool or the wikipedia historic interface functions are exactly
what I need.
Does somebody already seen a script like that ?
My goal is to see differences between two configuration files from Cisco
devices via a ruby on rails application.
Thanks in advance for your replies,
Best regards
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**Author:**  [@Mark\_Mcbride](https://rubytalk.org/u/Mark_Mcbride)\
**Post date:** [5 November 2008 00:12 UTC](https://rubytalk.org/t/htmldiff-between-2-files/44013/2 "2008-11-05T00:12:02Z")
Janus,
I wrote this script. It should do what you're looking for:
[http://markmcb.com/2008/11/04/ruby-on-rails-diff-text-to-html-ins-and-del/](http://markmcb.com/2008/11/04/ruby-on-rails-diff-text-to-html-ins-and-del/)
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> Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/).
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**Author:**  [@Janus\_Woze](https://rubytalk.org/u/Janus_Woze)\
**Post date:** [31 January 2009 10:45 UTC](https://rubytalk.org/t/htmldiff-between-2-files/44013/3 "2009-01-31T10:45:16Z")
Thank you a lot Mark !
It's very useful !
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> Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/).