Git Revert

Code

#!/bin/bash

# revert: create reverse commit (safe)
git revert <commit-hash>
git revert HEAD              # Undo last commit
git revert HEAD~2            # Undo last 2 commits
git revert --no-commit HEAD  # Undo but don't auto-commit

# Undo multiple commits
git revert HEAD~3..HEAD      # Undo last 3 commits
git revert --no-commit HEAD~3..HEAD  # Undo all at once

# reset: move HEAD (dangerous)
git reset --soft HEAD~1      # Undo commit, keep changes staged
git reset --mixed HEAD~1     # Undo commit, keep changes in working dir (default)
git reset --hard HEAD~1      # Undo commit, discard all changes

# checkout: restore file
git checkout HEAD~1 -- file.txt  # Restore file to historical version
git checkout <hash> -- file.txt  # Restore to specified commit

# restore: (new command)
git restore --staged file.txt    # Unstage
git restore --source=HEAD~1 file.txt  # Restore to historical version

# reflog: view operation history
git reflog
git reset --hard HEAD@{2}  # Restore to 2 steps ago

# clean: delete untracked files
git clean -n   # Preview
git clean -f   # Delete untracked files
git clean -fd  # Delete untracked files and dirs
git clean -x   # Include .gitignore files

# Recover lost commits
git fsck --lost-found
git show <dangling-commit-hash>

Explanation

git revert creates a reverse commit for safe undo; reset moves HEAD; reflog recovers mistakes; clean removes untracked files.

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