Add files to a commit

git add <FILES>

Use git mv or git rm for moved or deleted files.

Show the modified files

git status

Show the modifications in a file

git diff <FILE>


git commit -m "Description of the commit"

Fix last commit message

git commit --amend -m "Modified description"

Push commits

git push

Undo changes in a file

git checkout <FILE>

Get the list of commits

git log

Reverse a commit

git revert <SHA>

This does not delete the commit, it creates a new commit that cancels previous changes. The history is preserved.

git reset <SHA>

This deletes the not yet pushed commits from the history, but the files are preserved. The commits are deleted, but the contents are still on the disk.

To also cancel the changes on the contents:

git reset --hard <SHA>