=== Contribute to github ===
  - configure local git<code>
 $ git config --list
 $ git config --global user.name "San Zhang"
 $ git config --global user.email "san.zhang@example.com"
// global config file is ~/.gitconfig
</code>
  - fork a repo on github.com
  - clone repo<code>

 $ git clone https://github.com/frdeng/oraclelinux.git
</code>
  - add upstream to your repo<code>
 $ git remote add upstream https://github.com/boxcutter/oraclelinux.git
 $ git remote -v
</code>
  - fetch upstream<code>
 $ git fetch upstream
</code>
  - set upstream branch<code>
 $ git branch --set-upstream-to=upstream/master master
</code>
  - create new branch for changes<code>
 $ git checkout -b newfix
</code>
  - make code changes
  - add changes<code>
 $ git add .
</code>
  - commit changes<code>
 $ git commit -m "comments"
</code>
  - push to origin<code>
 $ git push --set-upstream origin newfix
</code>
  - create new pull request on github.com
  - Once PR is accepted, the fix is merged to upstream, then sync up with upstream. Fetch upstream, and rebase upstream, then push to own forked repo(origin><code>
$ git checkout master
$ git fetch upstream
$ git rebase upstream/master
$ git push origin master
</code>

=== git configuration ===
<code>
 $ git config --list
 $ git config [--global] -e
 $ git config [--global] user.name "San Zhang"
 $ git config [--global] user.email "san.zhang@example.com"
// global config file is ~/.gitconfig

</code>

=== branch and tag ===
<code>
 # list tags
 $ git tag -n
 # list local branches
 $ git branch
 # list remote branches
 $ git branch -r
 # list local and remote branches
 $ git branch -a
 # create a new branch, but do not switch to the branch
 $ git branch [branch]
 # create a branch and switch to it
 $ git checkout -b [branch] 
 # create a new branch and track remote branch
 $ git branch --track [branch] [remote-branch]
 $ git checkout -b [branch] --track [remote-branch]  or git checkout -b [branch] [remote-branch] //tracking is by default
 # track current branch to remote branch
 $ git branch --set-upstream-to  [remote-branch]
 # track a branch to remote branch
 $ git branch --set-upstream-to [remote-branch] [branch]
 # merge a branch to current branch
 $ git merge [branch] 
 # pick a commit and merge to current branch
 $ git cherry-pick [commit]
 # delete a branch
 $ git branch -d [branch]
 # delete a remote branch
 $ git push origin --delete [branch] or git branch -dr [remote/branch]

 # list tags
 $ git tag
 # create a tag at current commit
 $ git tag [tag]
 # create a tag at specific commit
 $ git tag [tag] [commit]
 # delete local branch
 $ git tag -d [tag]
 # push specific tag
 $ git push [remote] [tag]
 # push all tags
 $ git push [remote] --tags
 # create a new branch from a tag
 $ git checkout -b [branch] [tag]
</code>

=== add/remove file ===
<code>
 $ git add [file1] [file2] ... [-p]
 $ git add . //add all files to cache
 $ git rm [file1] [file2] ...
 $ git rm --cached [file1] //remove from cache but remain in working area
 $ git mv [filename] [new filename]
</code>

=== commit ===
<code>
 $ git commit -m "message"
 $ git commit [file1] [file2] ... -m "message"
 $ git commit -a //commit all
 $ git commit -v //show diff info
# show one specific commit
$ git show [commit]
# show the affected files in the commit
$ git show --name-only [commit]
# display the file content at the cmmit
$ git show [commit]:[filename]

</code>

=== get diff ===
<code>
# display diff between working area and cache
$ git diff
# display diff between cache and last commit
$ git diff --cached [file]
# display diff between work and latest commit
$ git diff HEAD
# display diff between two branches
$ git diff [branch1]...[branch2]
# display diff on specific directory between two branches 
$ git diff release-3.1..master -- version/
diff --git a/version/version.go b/version/version.go
index 6cb3c08..9134ceb 100644
--- a/version/version.go
+++ b/version/version.go
@@ -26,7 +26,7 @@ import (
 var (
        // MinClusterVersion is the min cluster version this etcd binary is compatible with.
        MinClusterVersion = "3.0.0"
-       Version           = "3.1.0+git"
+       Version           = "3.2.0+git"
        APIVersion        = "unknown"
 
        // Git SHA Value will be set during build

</code>

=== get information ===
<code>
# display changes
$ git status
# display current branch version history
$ git log
# display current branch commit history including affected files
$ git log --stat
# search from log by keyword
$ git log -S [keyword]
# display all changes after some specific commit, show each commit in one line
$ git log [tag ] HEAD --pretty=format:%s
# display all changes after some specific commit, and search keyword
$ git log [tag] HEAD --grep [keyword]
# display one specific file history, including file name
$ git log --follow [file] or git whatchanged [file]
# display each diff of a file
$ git log -p [file]
# display last 5 commits
$ git log -5 --pretty --oneline
# display all users that have commits, sort by # of commits
$ git shortlog -sn
# display the specific file when and who has changed
$ git blame [file]

# reference log
$ git reflog
</code>

=== remote ===
<code>
# download all changes
$ git fetch [remote]
# show remote
$ git remote -v
# add a new remote git repo and name it
$ git remote add [shortname] [url]
# pull all remote changes and merge to local branch
$ git pull [remote] [branch]
# upload local branch to remote
$ git push [remote] [branch]
# force to push current branch to remote
$ git push [remote] --force
# push all branches to remote
$ git push [remote] --all
</code>