Install MySQL on Ubuntu And Skip the Password Prompt

When you install mysql on Ubuntu (I use 16.04), it requires you to fill the admin password for the first time before finishing the installation. This prompt will wait the user input until you fill the password.

This trick is very helpful if you want to install mysql in Dockerfile, and skipping the password prompt:

$ export DEBIAN_FRONTEND=noninteractive
$ sudo -E apt-get -q -y install mysql-server

Install Arcanist Phabricator on Fedora 28

$ mkdir $HOME/arctools
$ cd $HOME/arctools
$ git clone https://github.com/phacility/libphutil.git
$ git clone https://github.com/phacility/arcanist.git
$ mv $HOME/arctools /opt
$ echo 'export PATH=$PATH:/opt/arctools/arcanist/bin' >> ~/.bash_profile
$ source ~/.bash_profile
$ sudo dnf install php php-json
$ arc --help
$ arc install-certificate
# and follow the rest of the instruction from the arc