For example, we have our folder in /etc/nginx/sites-available/example.com And to make virtual symlink folder here /etc/nginx/sites-enabled we run this

sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/

Three stages of using programming framework:

1. fascination with features and quick problem-solving

2. squeezing the maximum out of all configurations

3. difficulty in expanding the framework to new requirements

In result, throwing framework away and creating thing by yourself.

ls -Slh

-S will sort files by size
-l long listing
-h will make the output human-readable
-r will reverse the output

bash

mysql -e "show variables like 'datadir'"

mysql

show variables like 'datadir'

Memcache. It allows you to store both strings and php arrays and have fun. If it is not enough, try redis.