The git show command can be used to view information about a commit. The git show HEAD command can be used to display information about the latest commit.

]$ git show HEAD
commit 66afc30ab51826565db5efe7bb7ece95827562eb
Author: John Doe <john.doe@example.com>
Date:   Tue Sep 27 05:30:54 2022 -0500

    replaced foo with bar

diff --git a/example.txt b/example.txt
index d6ea8b6..52934eb 100644
- foo
+ bar

Or, you can specify a specific commit.

git show <commit id>:<path to file>

The git log can be used to get the ID of each commit.

~]# git log --oneline example.txt
afba75a second commit
741785c first commit

The git show command can be used to determine the appropriate path to the file.

git show <commit id> --name-only

Which will return a result such as:

misc/example.txt

In this example, here is how to view the changes made to example.txt at first commit.

~]# git show 741785c:misc/example.txt
commit 741785c
Author: John Doe <john.doe@example.com>
Date:   Tue Jan 17 07:14:54 2022 -0500

    initial commit