Install PHP 7.1 on Debian Jessie ARM 64bit architecture

I wanted to test PHP7 on my Debian Jessie install, but latest offered package in the repositories was 5.6.30+dfsg-0+deb8u1.

In order to install PHP 7.1 which was the latest at the time of this article, you need to add following repository by running following commands:

apt-get install apt-transport-https lsb-release ca-certificates
wget -O /etc/apt/trusted.gpg.d/php.gpg
echo "deb $(lsb_release -sc) main" > /etc/apt/sources.list.d/php.list
apt-get update

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Compile Realtek rtl8812AU/8821AU USB WiFi driver on Debian Jessie

Install the driver first from github:

sudo apt-get install git
git clone
cd rtl8812AU_8821AU_linux
sudo cp -R . /usr/src/rtl8812AU_8821AU_linux-1.0
sudo dkms add -m rtl8812AU_8821AU_linux -v 1.0
sudo dkms build -m rtl8812AU_8821AU_linux -v 1.0
sudo dkms install -m rtl8812AU_8821AU_linux -v 1.0

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Change default editor in Debian and debian-like distributions

To check which editor is set as default in your Debian distro you can do two things:

  1. in your favorite shell press CTRL+X+CTRL+E which will launch your default editor or
  2. use command update-alternatives –list-editor to list installed editors and you can expect result similar like this one:
# update-alternatives --list editor

To set for example vim.basic as your default editor you can use following command:

# update-alternatives --set editor /usr/bin/vim.basic
 update-alternatives: using /usr/bin/vim.basic to provide /usr/bin/editor (editor) in manual mode

Now if you again quick launch your editor with CTRL+X+CTRL+E you will notice that vim is invoked.