1、设置当前分支为默认分支:
    git branch –set-upstream-to=origin/master

2、To push the current branch and set the remote as upstream, use:
    git push --set-upstream origin eds_enhancement

3、同步远程分支
    git remote update --prune [remote]

4、Remove a file from a Git repository without deleting it from the local filesystem
    For single file:
    git rm --cached mylogfile.log

    For single directory:
    git rm --cached -r mydirectory

5 undo git add . from staged
    git reset
    git reset <file path>

    or undo all staged files:
    git reset HEAD .

6 commit to gateWay
    git push origin HEAD:refs/for/19.1.1_sparkle

7 撤销提交
    git revert [commit id]

8 查看文件变动
    git show --name-only {commit}

9 squash commits to one(将多个commits压成一个)
    git rebase -i [commit-id (not contained it)] 

    note: 
        select by `s` short command

10 在最近的commit上追加文件变动
    git add the_left_out_file
    git commit --amend --no-edit

    or 

    git reset HEAD^
    git add again

11 撤回部分file的commit
    step 1: git reset --soft HEAD^1
    step 2: git reset <file path>
    git rm --cached <file-name>(如果要刪除此文件)

12 恢复reset
    git reflog

13 list all conflict files
    git diff --name-only --diff-filter=U

14 add message to stash command
    git stash save <messages>

15 rebase local branch with remote master
    step1: git fetch origin            # Updates origin/master
    step2: git rebase origin/master    # Rebases current branch onto origin/master

16 change commit message to latest commit
    git commit --amend -m "New commit message."

17 git log --author=<author name>

18 git alias
     git config --global alias.p 'push'
     git p