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Step one
sudo apt-get purge xscreensaver xscreensaver-data
Step two
sudo apt-get install light-locker
Step three
# which light-locker-command 
/usr/bin/light-locker-command
Step four
Bind global hotkey (keyboard settings for XFCE case) for command /usr/bin/light-locker-command -l
Based on this solution
linux

Step 1
vim /etc/pulse/daemon.conf
Then find and change line with flat-volumes to
flat-volumes = no
After that we have to restart pulseaudio without restart
pulseaudio -k
pulseaudio -D
Source solution note is here
linux

It's simple
tar -xJvf archive-file.tar.xz -C ~/dest/folder/name
Also simple for regular .tar.gz files
tar -xzvf archive-file.tar.gz -C ~/dest/folder/name
linux ubuntu

Plank homepage is here: launchpad.net/plank
0. Download & extract sources
1. Install dependencies
sudo apt-get install automake gnome-common intltool pkg-config valac libbamf3-dev libdbusmenu-gtk3-dev libgdk-pixbuf2.0-dev libgee-dev libglib2.0-dev libgtk-3-dev libwnck-3-dev libx11-dev libgee-0.8-dev
2. Compile and install
./configure
make
sudo make install
3. Update shared libraries
sudo ldconfig
4. Run plank, or plank preferences window
plank &
plank --preferences
Source solution is here www.techbear.co/installing-plank-dock-on-debian-jessie
linux

Solution
su -
echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | tee /etc/apt/sources.list.d/webupd8team-java.list
echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" | tee -a /etc/apt/sources.list.d/webupd8team-java.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys EEA14886
apt-get update
apt-get install oracle-java8-installer
Original note about this
linux

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