#server side:

#server live directory: /var/www/domain.com
#server repository: /var/repo/site.git

1. clone project from git/bitbucket into /var/www/domain.com or init the folder by "git init".
  
2. go to /var/repo/site.git and init the folder as git bare
   $git init --bare
   --bare means that our folder will have no source files, just the version control.
   
3. still in site.git folder go to hooks. 
    $cd hooks
    $cat > post-receive # When you execute this command, you will have a blank line indicating that everything you type will be saved to this file
    type:
      #!/bin/sh
      git --work-tree=/var/www/domain.com --git-dir=/var/repo/site.git checkout -f
      
4. $chmod +x post-receive
   $exit
   
#Local workspace:

1. go to your "git" project folder.
2. $git remote add live ssh://[email protected]/var/repo/site.git
3. after any changes. remrember "push" to both live and master
   $git push
   then
   $git push live