undo revert commit code example

Example 1: how to revert a commit

git reset --soft HEAD@{1} # delete the last commit keeping the changes
git reset --hard HEAD@{1} # delete the last commit removing the changes

git push --force origin master # delete the last commit also on remote branch

Example 2: revert git commit

git revert <the_commit_hash>

Example 3: revert commit git

$ git log --oneline
b764644 File with three lines
7c709f0 File with two lines
9ef9173 File with one line

Example 4: how to revert a git revert

git revert <commitHashOfTheRevert> # locate the hash the revert was done 
                             #this will invert the changes made in that commit
                             #and preserve the git history