in reply to Re: comparing any two text files and writing the difference to a third file
in thread comparing any two text files and writing the difference to a third file

Unix generally comes with diff preinstalled, if not, it should be easy to install (https://xkcd.com/1654/). If everything else fails, you can install from source.

On Windows, TortoiseSVN comes with TortoiseMerge, a very nice tool that can not only diff two files, but can also merge two versions of a file. A handy little trick is that you can edit files while using TortoiseMerge in diff mode. TortoiseGit comes with a very similar tool named TortoiseGitMerge. I never used the latter, but I guess it's the same tool except for the interface to the VCS (SVN vs. git).

Alexander

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Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)
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