```
$ git log
 commit 49a37bc9fd27c909e4fe77812041fd38b9755f61 (HEAD -> master)
 Author: chenghuang <574637816@qq.com>
 Date:   Thu Dec 7 14:15:42 2017 +0900

useless

commit e9b08e2b428f9dd58aa0b792ebeb29da4270dfab
Author: chenghuang <574637816@qq.com>
Date:   Tue Dec 5 22:45:31 2017 +0900

20171205_Checklist_well

```

I just have to commits in my git log.

```
$ git branch #my current branch is master
 * master

$ git remote -v #This is my remote github url
origin  https://github.com/ekoopgj/Shell_learning.git (fetch)
origin  https://github.com/ekoopgj/Shell_learning.git (push)    

$ git push -u origin master
Username for 'https://github.com':
Password for 'https://ekoopgj@github.com':
To https://github.com/ekoopgj/Shell_learning.git
! [rejected]        master -> master (fetch first)
error: failed to push some refs to 'https://github.com/ekoopgj/Shell_learning.git'
 hint: Updates were rejected because the remote contains work that you do
 hint: not have locally. This is usually caused by another repository pushing
 hint: to the same ref. You may want to first integrate the remote changes
 hint: (e.g., 'git pull ...') before pushing again.
 hint: See the 'Note about fast-forwards' in 'git push --help' for details.

```

I can't push my updates to remote . What's it mean that "remote work contains that you do"?