Is there a way I can see the changes that were made to a file after I have done git add file?

That is, when I do: 

git add file git diff file

no diff is shown. I guess there's a way to see the differences since the last commit but I don't know what that is.

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3 Answers

You can show changes that have been staged with the --cached flag:

$ git diff --cached

In more recent versions of git, you can also use the --staged flag (--staged is a synonym for --cached):

$ git diff --staged
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In order to see the changes that have been staged already, you can pass the -–staged option to git diff (in pre-1.6 versions of Git, use –-cached).

git diff --staged git diff --cached

You can also use git diff HEAD file to show the diff for a specific file.

See the EXAMPLE section under git-diff(1)

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