Install CLI Tools Ubuntu 18.04

Install basic development CLI tools in Ubuntu 18.04. It includes:

• oh-my-zsh
• idle
• venv
• git
• tree

Install Git in Ubuntu 18.04 LTS

• Install Git:

  sudo apt install git
  

• Add global configuration for Git user:

  git config --global user.email "you@example.com"
  git config --global user.name "Your Name"
  

• Add SSH. Details can be found in this gist

Install Oh My Zsh in Ubuntu 18.04 LTS

• Install Zsh:

  sudo apt install zsh
  

• Install git:

  sudo apt install git
  

• Install oh-my-zsh:

  sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"
  

• Make zsh as default shell:

  chsh -s `which zsh`
  

• Re-login to desktop to reflect changes.

Install Tools for Python

• Ubuntu 18.04 comes with Python 3.6.7:

  python3 --version
  Python 3.6.7
  

• It does not have idle or venv in it.

• Install idle:

  sudo apt install idle
  

• Install venv:

  sudo apt-get install python3-venv
  

(Optional) Create Flask application inside virtual environment and run locally:

• Create new virtual environment and activate it

  python3 -m venv venv
  source venv/bin/activate
  

• Install flask:

  pip install flask
  

• Application app.py:

  from flask import Flask
  
  app = Flask(__name__)
  
  @app.route('/')
  def index():
      return "Hello from Flask"
  

• Environment file .flaskenv:

  FLASK_APP=app.py
  FLASK_ENV=development
  

• Run the application:

  flask run
  

Install tree package in Ubuntu 18.04

• Install the package:

  sudo apt install tree
  

• Show current directory in tree view:

  tree
  

• Ignore a specific directory in tree view:

  tree -I venv
  

• Ignore multiple directories or pattern in tree view:

  tree -I 'venv|__pycache__'
  

Reference:

• Ubuntu documentation for Git
• Github documentation for Git
• Gist with all steps