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Git is the most demanding version control system in today's era. Sometimes we face a situation when we need to compare some data in our repository with some other data source available in another repository, here we will discuss one of the examples of how to compare these repositories.

This article will use the Git git diffcommand to compare two different commits.

git diffOrder

The command git diffis used to show changes between the index and/or working tree, changes between two different types of trees, changes that occurred due to a merge, changes that occurred between two blob objects, or perhaps changes between two different files on the same disk. We can also see what text has been included, deleted, and replaced in a file.

git diffThe syntax of the command is as follows.

git diff

The command above shows any uncommitted changes to our current repository, which is the default option.

git diffBetween submissions

Git has a wide range of commands for every situation we face every day. To check the difference between two commits, Git provides the command git diffwhich activates diffingthe feature in Git.

The function is executed by taking two variables as input and then rendering the changes between them; the variables are the commits that the files were in their respective branches.

Here, we will compare files between two Git commits and specify refthe name of the commit that refers to the commit we want to compare. Here, a refcan be thought of as a commit IDor a HEAD, directly referring to the most recent branch.

The syntax for the case discussed above is as follows.

git diff <commit1> <commit2>

We will provide commit hashes to see the differences between two commits. The commit hash can be a full SHA-1hash, a small number SHA-1of hashes, or an ancestor path.

For example, let's say we are comparing two commits in a Git repository. To revert to the commit whose files we want to compare ID, we will execute the command git log –pretty=oneline; it will give us repoa concise result of all the commits in the repository that we currently have.

git log --pretty=oneline

The result of this command will be:

5141eaasasw323asassa2408bfcaassasa2323240 (HEAD ->; master) feat: Update README.md
3405340easagsdsaasa3232232395f1c2e docs: Create README.md

Suppose we want to compare these two commits. We will execute the following command.

git diff 5141ea9c41qwqwqwqw3232saas3322323223a910f2405240 3405340ee99df2aa6f5a23aswwqwqqwqwqw95f1c2e

As we can see, diffingthe above command will be executed on the two commits we want to compare, and the result will show the differences between the two files.