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Byobu is a suite of enhancements to tmux, as a command line
tool providing live system status, dynamic window management,
and some convenient keybindings:

  F1                             * Used by X11 *
    Shift-F1                     Display this help
  F2                             Create a new window
    Shift-F2                     Create a horizontal split
    Ctrl-F2                      Create a vertical split
    Ctrl-Shift-F2                Create a new session

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KEYBINDINGS
       byobu keybindings can be user defined in /usr/share/byobu/keybindings/ (or within .screenrc if byobu-export was used). The  common  key  bindings
       are:

       F2 - Create a new window

       F3 - Move to previous window

       F4 - Move to next window

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Byobu Commands
==============

        byobu                              Screen manager


Level 0 Commands (Quick Start)
------------------------------

        <F2>                               Create a new window

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• To check if you are usin LVM - Logical Volume Mgmt

  • # apt install lvm2
  • # lvs if nothing is shown then you are not using lvm
  • OR just check: cat /etc/fstab @more - https://askubuntu.com/a/202652/804122

• Ran out of swap ?! How do you extend it

  1. Create or Extend existing partition: https://opensource.com/article/18/9/swap-space-linux-systems

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CELL 1

# install the world of CUDA

!apt update -qq;
!wget https://developer.nvidia.com/compute/cuda/8.0/Prod2/local_installers/cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64-deb;
!dpkg -i cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64-deb;
!apt-key add /var/cuda-repo-8-0-local-ga2/7fa2af80.pub;
!apt-get update -qq;
!apt-get install cuda gcc-5 g++-5 -y -qq;

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These commands are based on a askubuntu answer http://askubuntu.com/a/581497
To install gcc-6 (gcc-6.1.1), I had to do more stuff as shown below.
USE THOSE COMMANDS AT YOUR OWN RISK. I SHALL NOT BE RESPONSIBLE FOR ANYTHING.
ABSOLUTELY NO WARRANTY.

If you are still reading let's carry on with the code.

sudo apt-get update && \
sudo apt-get install build-essential software-properties-common -y && \
sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y && \

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• Do the obvious creation of shared folder
• Add user to group $ sudo adduser $(whoami) vboxsf && reboot
• Permit symblink creation $ VBoxManage setextradata LK-Dev-LubuntuBionic VBoxInternal2/SharedFoldersEnableSymlinksCreate/lkdev 1

ref:

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#IRC Reference

Not intended as a guide for newbies, more like a "cheat sheet" for the somewhat experienced IRC user, especially one who wields some power over a channel.

##The Basics

• /join #channel
  • Joins the specified channel.
• /part #channel
  • Leaves the specified channel.

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Here'e an example of how to register a nick on Freenode IRC. It's a little tricky, but if you follow some simple steps, you'll get through it okay. All you need to do is connect to the Freenode IRC network and have a little talk with NickServ.

The first and most confusing questions can be combined:

1. How do I know if my nick is already registered to someone else?
2. How do I talk to NickServ?

Start by connecting your client to irc.freenode.net and joining any chat.

Next, type this command in the chat window:

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Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r