Geckodriver and Chromedriver installers for OSX/Mac

chromedriver-install.sh

#!/bin/bash
# download and install latest chromedriver for linux or mac.
# required for selenium to drive a Chrome browser.

install_dir="/usr/local/bin"
version=$(wget -qO- https://chromedriver.storage.googleapis.com/LATEST_RELEASE)
if [[ $(uname) == "Darwin" ]]; then
    url=https://chromedriver.storage.googleapis.com/$version/chromedriver_mac64.zip
elif [[ $(uname) == "Linux" ]]; then
    url=https://chromedriver.storage.googleapis.com/$version/chromedriver_linux64.zip
else
    echo "can't determine OS"
    exit 1
fi
curl -s -L "$url" | tar -xz
chmod +x chromedriver
sudo mv chromedriver "$install_dir"
echo "installed chromedriver binary in $install_dir"

geckodriver-install.sh

#!/bin/bash
# download and install latest geckodriver for linux or mac.
# required for selenium to drive a firefox browser.

install_dir="/usr/local/bin"
json=$(curl -s https://api.github.com/repos/mozilla/geckodriver/releases/latest)
if [[ $(uname) == "Darwin" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("macos"))')
elif [[ $(uname) == "Linux" ]]; then
    url=$(echo "$json" | jq -r '.assets[].browser_download_url | select(contains("linux64"))')
else
    echo "can't determine OS"
    exit 1
fi
curl -s -L "$url" | tar -xz
chmod +x geckodriver
sudo mv geckodriver "$install_dir"
echo "installed geckodriver binary in $install_dir"

Disclaimer

This Firefox/Geckodriver script was taken from https://gist.github.com/cgoldberg/4097efbfeb40adf698a7d05e75e0ff51, and the Chromedriver is basically a copy of it