important_ubuntu_commands

How to change the time for OS selection menu in GRUB?
sudo apt install gksu
gksu gedit /etc/default/grub
# then edit GRUB_TIMEOUT=10
sudo update-grub

Downloading udemy courses on ubuntu
https://www.youtube.com/watch?v=ednAnYlpU4s
Download Udemy Videos on Linux - Udeler

After downloading the udeler, run the following commands
cd Downloads/
chmod u+x Udeler-1.8.0-linux-x86_x64.AppImage
./Udeler-1.8.0-linux-x86_x64.AppImage

select skip attachments in settings








sudo apt install snapd
sudo apt update
sudo snap install snap-store


git --version 
sudo apt-get install git 
sudo apt-get install git-core 
sudo apt-get install git-gui git gui

how to install jupyter notebook in visual studio code 
https://www.youtube.com/watch?v=FSdIoJdSniga



creating new jupyter notebook in visual studio

Cntrl+Shift+P

then type create new jupyter notebook



for dkpg errors:


$ sudo rm /var/lib/apt/lists/lock
$ sudo rm /var/lib/dpkg/lock
$ sudo dpkg --configure -a
$ sudo apt install -f


install pip on ubuntu
sudo apt install python3-pip



install jupyter notebook and jupyter lab

pip3 install notebook
pip3 install jupyterlab
pip install jupyter


installing python 3.7 on ubuntu

https://www.digitalocean.com/community/questions/unable-to-install-pyhton-3-7-version-on-ubuntu-16-04-error-couldn-t-find-any-package-by-regex-python3-7

sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update
sudo apt install python3.7
python3.7 --version


when there is no left bar in ubuntu

Cntrl+Alt+F2
sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install unity

sudo reboot



Java Installation on Ubuntu 16.04 for eclipse to use for ROS
https://tecadmin.net/install-oracle-java-8-ubuntu-via-ppa/
sudo apt update
sudo apt install openjdk-8-jdk openjdk-8-jre