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YouTube to mp3 Linux (Ubuntu, Mint, Debian)

This guide will show you how to easily convert YouTube Videos to MP3 on Ubuntu or Debian.

youtube-dl  is a Linux command-line tool for downloading/converting videos. The tool supports YouTube and many other websites such as BBC.
For Ubuntu systems (or systems that are based on it such as Linux Mint)sudo apt-get install youtube-dlFor Debiansudo wget https://yt-dl.org/downloads/2014.03.25.1/youtube-dl -O /usr/local/bin/youtube-dl sudo chmod a+x /usr/local/bin/youtube-dlAlso, make sure ffmpeg is installed
sudo apt-get install ffmpegBefore you do anything, update to the latest version of youtube-dlsudo youtube-dl -UOnce it is installed use the following command to convert YouTube videos to mp3youtube-dl --extract-audio  --audio-format mp3  <youtube-link> If you want  an overview of all the different optionsyoutube-dl --help Supported sites as of March, 20141up.com220.ro3sat4tube56.com5min8tracks9gagAcademicEarth:CourseAddAnimeAftonbladetanitube.seAparatAppleTrailersarchive.org: archiv…

How to turn off animations in Linux Mint (Mate)

UPDATE: Check bottom of page.
If you find them as annoying as me, follow the steps:

ALT + F2
mateconf-editor

Go to desktop - mate - interface

Look for enable_animations and uncheck.

Done.

Update Jan 2014

Mateconf-editor has been replaced.
sudo apt-get install dconf-tools


dconf-tools

Update July 2015

Open terminal
sudo dconf-editor
Org/mate/desktop/interface and uncheckenable_animations.

and

org/mate/marco/general and checkreduced_resources.

Install latest nvidia driver in Ubuntu

sudo apt-get install nvidia-current-updates
source: pastebin
(see end of document)

TrueCrypt is already running - Ubuntu 12.1

Hi!

Encountered the following problem today: When I wanted to open truecrypt I got the following error message: "truecrypt is already running".
Solution Most likely you did not  close the application "cleanly" the last time you were using it. Now there is a lock file in you home directory.

Ok, open your home directory. Press CTRL + H (this will show the hidden files).

Now, there should be a file called TrueCrypt-lock-USERNAME.-DELETE IT.

Everything should be fine again.

Deep Web Link List (.onion)

Please find a collection of .onion links below. You need to install Tor Browser from http://torproject.org/ to be able to access the links.



Quick tutorial on how to host and run your own Linux server: i.e. hidden service. First download whonix workstation + gateway.

on the whonix gateway

sudo nano /etc/tor/torrc
make sure to have the following 2 lines in the file
HiddenServiceDir /var/lib/tor/hidden_service/
HiddenServicePort 80 192.168.0.11:80
restart tor
sudo service tor reload
get your hidden .onion url
sudo nano /var/lib/tor/hidden_service/hostname now on the workstation. lighttpd is an open-source web server. 

sudo apt-get update
sudo apt-get install lighttpd
Done.

Compilation problem R in Ubuntu

error: --with-readline=yes (default) and headers/libs are not available


sudo apt-get install r-base-dev
sudo apt-get install xorg-dev

error: No F77 compiler found

You need the package gfortan in Ubuntu:

sudo apt-get install gfortran

For Fedora:

sudo yum install gcc