how to merge from master to dev branch in local code example

Example 1: merge master to dev branch

1. //pull the latest changes of current development branch if any        
git pull (current development branch)

2. //switch to master branch
git checkout master 

3. //pull all the changes if any
git pull

4. //Now merge development into master    
git merge development

5. //push the master branch
git push origin master

Example 2: merge master into local branch

git checkout feature1
git merge master