How can I "diff -c" with git?

Question

In $VCS I make heavy use of $VCS diff -c $N to see only the changes introduced in revision $N (ie, diff -r $N..$N+1).

How can I do the same thing with git?

Answer 1

# git show -p SHA1_COMMIT

Answer 2

git diff SHA1_COMMIT^ SHA1_COMMIT

With SHA1_COMMIT being the SHA1 of the commit you want to inspect.
That "git diff" will compare:

• the version before the commit referenced by that SHA1 and
• the commit referenced by said SHA1.

As mentioned in the source code of the builtin-diff.c, the syntax parsed is:

static const char builtin_diff_usage[] =
"git diff <options> <rev>{0,2} -- <path>*"