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Comparing Files
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28.8 More Friendly diff Output

ediff
If you find the output of the diff (28.1 ) program to be hard to follow, try using the ediff program to filter diff output into something more readable. For example, the diff program might produce the following output:

% diff chapter2 chapter2.new


i22,26d21
< Use the bc program to convert from decimal to hexadecimal.
< To do so, use the obase command to set the base for output:
<
<       obase=16
<
39c34,35
< See Section 5.6 for more examples of using bc.
--
> See Section 5.6 for information on how to use the bc command to
> convert decimal to hexadecimal.

This is a little hard to follow until you get used to the format. Now try filtering the output through ediff :

% diff chapter2 chapter2.new | ediff



---- 5 lines deleted at 22:
Use the bc program to convert decimal to hexadecimal.
To do so, use the obase command to set the base for output:

        obase=16

---- 1 line changed to 2 lines at 39 from:
See Section 5.6 for more examples of using bc.
---- to:
See Section 5.6 for information on how to use the bc command to
convert decimal to hexadecimal.

Now you see why ediff describes itself as a "diff to English translator."

- LM


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