how to delete from commit code example

Example 1: git remove commit

# Removes latest commit from the stash, KEEPS changes
git reset --soft HEAD~

# Removes latest commit from the stash, DELETES changes
git reset --hard HEAD~

Example 2: github remove a file from a commit

## Remove Files From Git Commit
## In order to remove some files from a Git commit, use the “git reset”
## command with the “–soft” option and specify the commit before HEAD.
git reset --soft HEAD~1

## Now that your files are in the staging area, you can remove them (or
## unstage them) using the “git reset” command again.
git reset HEAD <file>
git rm --cached <file>

## When you are done with the modifications, you can simply commit your
## changes again with the “–amend” option.
git commit --amend

## Check file is no longer in the list
git ls-files

## Then if you're happy, you can do your push...

Example 3: git remove added file to commint

git reset file-name

Example 4: delete commit

git checkout master
git reset --hard e3f1e37
git push --force origin master
# Then to prove it (it won't print any diff)
git diff master..origin/master