MacBook Development Environment Setups (OS Catalina : 10.15 & Big Sur: 11.1 )

Primary Installation Steps

Xcode tools: xcode-select —install Above commands should start the reinstallation process. In case you get below messege -

xcode-select: error; command line tools are already installed, use "Software Updates" to install updates

Then you need to work around else you'll face issue running lot of commandline code.

Quick Fix

Step 1

Run sudo xcode-select --reset

If this does nothing then follow next steps which works for Big Sur 11.1

Step 2 [This should be enough]

Run

xcode-select --print-path

then remove the path by

sudo rm -r -f /Library/Developer/CommandLineTools

Then finally,

xcode-selct --install

should get you below picture -

For more info on xcode installation refer this source

Homebrew:

HomeBrew is an Open-Source software pakage manager. It is Very handy and essential for mac terminal to install\uninstall open source softwares

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

basic command for installing softwares via homebrew package manager:

• brew install [package_name]
• brew uninstall [package_name] for uninstalling purpose`
• echo 'export PATH="/usr/local/sbin:$PATH"' >> ~/.zshrc adding brew to environment path
• brew update for updating brew packages to latest version
• brew info [package_name] information on the pakages of your interest
• brew list or brew list | grep [pakage_name] for listing/finding available pakages under brew

NOTE if HomeBrew installation failed try this -

 rm -rf /usr/local/bin/brew
 rm -rf /usr/local/share/doc/homebrew
 rm -rf /usr/local/share/man/man1/brew.1
 rm -rf /usr/local/share/zsh/site-functions/_brew
 rm -rf /usr/local/etc/bash_completion.d/brew
 rm -rf /usr/local/Homebrew

Source

CASK:

CASK brew cask is an extension of brew install GUI based application.

Basic steps for CASK usages -

• brew install cask
• brew search --casks this for searching apps under cask`
• brew search [package_name]
• brew cask update for updating packages
• brew cask help for checking advance option for cask

PYTHON

pyenv is a Open-Source Package Manager for python version control in a single system. Setting up python using pyenv in very easy and effective. This will not imapct system python version. You can find the project here on GitHub. Basic installation steps are -

*brew install pyenv

• pyenv should print current version 1.2.20 (as of today)
• pyenv install --list or pyenv install -list | grep -ow 3.8.5 just to check if latest version of python release is available with pyenv
• pyenv install [version_name] e.g. 3.8.5
• Finally check available version(s) with pyenv by pyenv versions

To know more about pyenv please refer here

Next step after installing python with pyenv is to install another popular package manager pipenv. It is a package manager for handling python libraries

Basic installation can be done by -

• brew install pipenv
• pipenv -version should return latest version 2020.8.13. This should also install lastest python3 to mac by default and pip3

To know more please refer here

Adding pyenv into the $PATH

echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.zshrc[.bash_profile]
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.zshrc[.bash_profile]
echo 'eval "$(pyenv init -)"' >> ~/.zshrc[.bash_profile]

Quick Intro from Real Python Other Utilities

If you are a Linux user, you must have used htop for inspecting CPU usages. Well you can use the same in Mac as well.

to install htop - brew install htop run by sudo htop as this application will need to access hardware info from the kernals

Another must have utility is SPEEDTEST. I use it all the time via browser. But CLI application is much cooler. to install speedtest - brew install speedtest-cli run by speedtest-cli

Software Updates checking via commandline - softwareupdate

Updating App Store Application from command line -

• brew install mas
• Type mas to check other command options available with mas

References:

1. https://apple.stackexchange.com/questions/125468/what-is-the-difference-between-brew-and-brew-cask
2. https://www.youtube.com/watch?v=Ym2pxzWpTNw&ab_channel=SnazzyLabs
3. https://www.chrisjmendez.com/2017/08/03/installing-multiple-versions-of-python-on-your-mac-using-homebrew/
4. https://www.chrisjmendez.com/2016/01/10/installing-homebrew-on-mac-os-x/
5. https://realpython.com/intro-to-pyenv/#using-pyenv-to-install-python
6. https://pipenv-fork.readthedocs.io/en/latest/
7. https://www.applegazette.com/mac/update-mac-apps-using-terminal/