Reading git diff output

I am just starting to learn how to use git and have run git diff on the files below – Im a bit confused about how you read the output –

From what I understand so far the below is saying there is a difference between the working directory and the index in relation to file01 and then file02. Could someboby explain in english how you read this part of the output –> @@ -1,4 +1 @@

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    diff --git a/file01 b/file01
    index cc17fa4..d0a432b 100644
    --- a/file01
    +++ b/file01
    @@ -1,4 +1 @@
    +This is a change
    diff --git a/file02 b/file02
    index e69de29..552c22e 100644
    --- a/file02
    +++ b/file02
    @@ -0,0 +1 @@
    +and this is another change

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  • One Solution collect form web for “Reading git diff output”

    The @@ -1,4 +1 @@ means:

    -1,4: here are 4 lines from the original starting from line 1.

    +1 and here is 1 line from the new version.

    Git Baby is a git and github fan, let's start git clone.