popexizhi: github delete 指定的commit

https://tecadmin.net/delete-commit-history-in-github/

Delete Commit History in Git Repository

Follow the below steps to complete this task.

Warning: This will remove your old commit history completely, You can’t recover it again.

Create Orphan Branch – Create a new orphan branch in git repository. The newly created branch will not show in ‘git branch’ command.
```
$ git checkout --orphan temp_branch
```
Add Files to Branch – Now add all files to newly created branch and commit them using following commands.
```
$ git add -A
$ git commit -am "the first commit"
```
Delete master Branch – Now you can delete the master branch from your git repository.
```
$ git branch -D master
```
Rename Current Branch – After deleting the master branch, let’s rename newly created branch name to master.
```
$ git branch -m master
```
Push Changes – You have completed the changes to your local git repository. Finally, push your changes to remote (Github) repository forcefully.
```
$ git push -f origin master
```