git undo all changes

When using Git for development, we may continue to modify the code for testing and debugging. However, sometimes we may fail to modify a certain file or the entire warehouse or want to roll back to a previous version. At this time, we need to undo our previous modifications. This article will introduce how to use Git to undo all changes.

1. Undo the modification of the file

If we only need to undo the modification of a certain file, we can use the following command:

git checkout -- <file>

where<file> is the name of the file we want to undo the modification. After executing the above command, the file will be restored to the previously submitted version. It should be noted that this command will overwrite local modifications. If we have not submitted modifications to the file before, the file will be restored to the most recently submitted version.

2. Undo all modifications

If we need to undo all modifications, including addition, deletion and modification operations, we can use the following command:

git reset --hard HEAD

Execute the above command Afterwards, all uncommitted local modifications will be undone and local files will be overwritten.

3. Submit modifications to the temporary storage area

If we only want to submit modifications to a certain file to the temporary storage area, we can use the following command:

git add <file>

where <file> is the name of the file we want to submit. After executing the above command, the file modifications will be added to the staging area, and we can upload them to the remote warehouse in the next submission.

4. Submit modifications to the local warehouse

If we want to submit the modifications to the local warehouse and retain the submission record, we can use the following command:

git commit -m "commit message"

where"commit message" is the remark information we added when submitting. After executing the above command, a new submission record will be added to the local warehouse, recording all the modifications we submitted.

5. Submit modifications to the remote warehouse

If we want to upload the modifications to the remote warehouse and share them with other developers, we can use the following command:

git push

Execute the above After executing the command, the changes we submitted will be uploaded to the remote warehouse and shared with other developers.

Summary

Git is a very powerful version control system that provides many commands that can help us manage projects. When developing, it is inevitable that there will be some mistakes. If we want to undo previous modifications, we can use the undo command provided by Git. When using Git, we need to note that Git's undo operation is irreversible, so you need to confirm carefully before performing the undo operation.

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