z2015

function add_upload_mime_types( $mimes ) {
    if ( function_exists( 'current_user_can' ) )
        $unfiltered = $user ? user_can( $user, 'unfiltered_html' ) : current_user_can( 'unfiltered_html' );
    if ( !empty( $unfiltered ) ) {
        $mimes['apk'] = 'application/vnd.android.package-archive';
    }
    return $mimes;
}
add_filter( 'upload_mimes', 'add_upload_mime_types' );

z2015

<!--https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-ubuntu-14-04-->

z2015

// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = {
    37: 1,
    38: 1,
    39: 1,
    40: 1
};

function preventDefault(e) {

z2015

<EMBED height=60 pluginspage=http://www.macromedia.com/go/getflashplayer src=http://www.jb51.net/flash/flash.swf type=application/x-shockwave-flash width=468 wmode="transparent" quality="high"></EMBED>

z2015

mysqldump -u username -p database_to_backup > backup_name.sql

mysql -u username -p
CREATE DATABASE database_name;
exit
mysql -u username -p database_name < backup_name.sql

//https://www.digitalocean.com/community/tutorials/how-to-backup-mysql-databases-on-an-ubuntu-vps

z2015

server{
  listen 443 ssl;
  server_name www.mydomain.com;
  root /www/mydomain.com/;

  ssl    on;
  ssl_certificate /ssl/domain.crt;
  ssl_certificate /ssl/domain.key;
  .
  . 

z2015

sudo pip install virtualenv
sudo apt-get install python3

virtualenv --no-site-packages --python=python3.4 test_env
如果出现The executable python does not exist 错误，那么可以这样使用
virtualenv --no-site-packages --python=3.4 test_env

source test_env/bin/activate
pip install django

z2015

sudo apt-get update
sudo apt-get install chromium-browser
sudo apt-get install pepperflashplugin-nonfree
sudo update-pepperflashplugin-nonfree --install

sudo apt-get remove chromium-browser pepperflashplugin-nonfree

z2015

git filter-branch --force --index-filter \
'git rm --cached --ignore-unmatch Rakefile' \
--prune-empty --tag-name-filter cat -- --all
Rewrite 48dc599c80e20527ed902928085e7861e6b3cbe6 (266/266)
Ref 'refs/heads/master' was rewritten

echo "Rakefile" >> .gitignore
git add .gitignore
git commit -m "Add Rakefile to .gitignore"

z2015

git init

git add .
# Adds the files in the local repository and stages them for commit. To unstage a file, use 'git reset HEAD YOUR-FILE'.

git commit -m "First commit"
# Commits the tracked changes and prepares them to be pushed to a remote repository. To remove this commit and modify the file, use 'git reset --soft HEAD~1' and commit and add the file again.

git remote add origin remote repository URL
# Sets the new remote