diff for multiple files

Question

I use "diff -y" command to compare 2 results of different versions of my program line by line. Like this:

1      1
123  | 234
asdf | qerq

Is there analog for multiple files, which will allow to compare line by line 3 or 4 files?Like this:

1      1      1      1
123  | 234  | 345  | 234
asdf | qerq | qdfd | asdd

Answer 1

vimdiff 1 2 3 4;

It's highly customisable with loads of features, for example if you want to dump the UI to html;

vimdiff 1 2 3 4 -c TOhtml -c 'w! diff4.html|qa!'

Answer 2

Here's a nice suggestion on stackoverflow. Take a look at the accepted answer about Diffuse software.

As for the output of the comparison to a file, I've just tested it with diffuse-0.4.6, but was unable to discover such feature, so I guess it's a topic for another question...

Answer 3

There is diff3 for comparing three files