'git status' shows changed files, but 'git diff' doesn't

Question

I\'ve had a look at all similar questions. However, I\'ve double checked and something strange is definitely happening.

On one server (Solaris with Git 1.8.1) I clon

Answer 1

I added the file to the index:

git add file_name

and then ran:

git diff --cached file_name

You can see the description of git diff here.

If you need to undo your git add, then please see here: How to undo 'git add' before commit?