Learn the correct Git commands to purge a sensitive file from your GitHub repository. Ensure your repositories remain secure by properly deleting and force pushing changes.
Table of Contents
Question
You manage source control by using GitHub.
You have a file named Data.txt that contains sensitive data. A user pushes Data.txt to a repository.
You need to purge the file from the repository.
Which two commands can you use? Each correct answer presents a complete solution.
NOTE: Each correct solution is worth one point.
A. git checkout
git reset -hard -pathspec data.txt
B. git checkout
git clean -d data.txt –force
C. bfg –delete-files data.txt
git push –force
D. git rm data.txt
git push –force
E. git filter-repo –invert-paths –path data.txt
git push origin –force –all
F. git revert -edit data.txt
git push -force
Answer
To permanently remove a sensitive file like Data.txt from a GitHub repository, you can use the following two commands:
C. bfg –delete-files data.txt
git push –force
E. git filter-repo –invert-paths –path data.txt
git push origin –force –all
Explanation
Both options C and E provide complete solutions for purging a file from the repository’s history.
Option C uses the BFG Repo-Cleaner tool, which is designed to remove unwanted files from Git repository history. The command `bfg –delete-files data.txt` removes all instances of the file “data.txt” from the repository. Following this, `git push –force` forces the changes to the remote repository, overwriting its history.
Option E uses the `git filter-repo` command, which is a powerful tool for rewriting Git history. The `–invert-paths` flag ensures that all paths except the ones specified are kept, and `–path data.txt` specifies the file to be removed. After the history is rewritten, `git push origin –force –all` force pushes all refs to the remote repository, effectively purging the sensitive file.
Options A, B, D, and F are incorrect because they do not completely remove the file from the repository’s history. They only remove the file from the current state of the repository, but the file would still be accessible in previous commits.
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