I have a project on old framework Rails 2.3.5 & ruby 1.8.6 ,which is running on window 7 and Server mongrel. Now i want to upgrade rails framework to rails 5 on Linux platform.
Is there any tool available for this. as manual work is too long process.
No. There is no tool to do upgrade 2.3.5 to 5. Neither can this be done in 1 step. If you don't want to rewrite from scratch or pay a 3rd party for it, assign enough time to it and start upgrading version by version. It can be accomplished, just requires a lot of patience.