如何将HEAD移回以前的位置？(独立头)和撤消提交

在git中,我试图squash commit通过合并另一个分支然后HEAD通过以下方式重置到上一个位置:

git reset origin/master

但我需要走出这一步.如何将HEAD移回上一个位置？

我有23b6772提交的SHA1 frag(),我需要将其移动到.
我怎样才能回到这个提交？

在回答之前,我们添加一些背景,解释这是什么HEAD.

HEAD只是对当前分支上当前提交(最新)的引用.在任何给定时间
只能有一个HEAD.(不包括git worktree)

内容HEAD存储在内部.git/HEAD,它包含当前提交的40字节SHA-1.

如果你没有进行最新的提交 - 意味着HEAD指向历史记录中的先前提交,则调用它detached HEAD.

在命令行上它看起来像这样 - SHA-1而不是分支名称,因为HEAD它没有指向当前分支的尖端

关于如何从分离的HEAD中恢复的几个选项:

git checkout

git checkout 
git checkout -b  
git checkout HEAD~X // x is the number of commits t go back

这将检查指向所需提交的新分支.
此命令将签出到给定的提交.
此时,您可以创建一个分支,并从此开始工作.

# Checkout a given commit. 
# Doing so will result in a `detached HEAD` which mean that the `HEAD`
# is not pointing to the latest so you will need to checkout branch
# in order to be able to update the code.
git checkout 

# create a new branch forked to the given commit
git checkout -b 

git reflog

你总是可以使用它reflog.
git reflog将显示更新的任何更改,HEAD并检出所需的reflog条目将设置HEAD回此提交.

每次修改HEAD时,都会有一个新条目 reflog

git reflog
git checkout HEAD@{...}

这将使您回到所需的提交

git reset --hard

将HEAD"移动"回所需的提交.

# This will destroy any local modifications.
# Don't do it if you have uncommitted work you want to keep.
git reset --hard 0d1d7fc32

# Alternatively, if there's work to keep:
git stash
git reset --hard 0d1d7fc32
git stash pop
# This saves the modifications, then reapplies that patch after resetting.
# You could get merge conflicts if you've modified things which were
# changed since the commit you reset to.

# add new commit with the undo of the original one.
# the  can be any commit(s) or commit range
git revert 

git reset 23b6772

git status

git push --force