How do you move a commit to the staging area in git?

A Simple Way

1. Committed files to Staging Area

   git reset --soft HEAD^1

2. Staging to UnStage :(use "git reset HEAD ..." to unstage)

   git reset HEAD git commands.txt or git reset HEAD *ds.txt

here, *--> all files end with ds.txt to unstage.

Refer the below pic for clarity:

git reset --soft HEAD^

This will reset your index to HEAD^ (the previous commit) but leave your changes in the staging area.

There are some handy diagrams in the git-reset docs

If you are on Windows you might need to use this format:

git reset --soft HEAD~1

To move a commit back to the staging area depends on your last commit. If your last commit was the first(or initial) commit of the repo, then you need to execute

git update-ref -d HEAD

If your last commit is not the first(or initial) commit, then execute

git reset HEAD~