How to install Chrome, ChromeDriver and Selenium on CentOS. Plus a sample scraping script.

selenium-install

#!/usr/bin/env bash
# https://developers.supportbee.com/blog/setting-up-cucumber-to-run-with-Chrome-on-Linux/
# https://gist.github.com/curtismcmullan/7be1a8c1c841a9d8db2c
# http://stackoverflow.com/questions/10792403/how-do-i-get-chrome-working-with-selenium-using-php-webdriver
# http://stackoverflow.com/questions/26133486/how-to-specify-binary-path-for-remote-chromedriver-in-codeception
# http://stackoverflow.com/questions/40262682/how-to-run-selenium-3-x-with-chrome-driver-through-terminal
# http://askubuntu.com/questions/760085/how-do-you-install-google-chrome-on-ubuntu-16-04

# Versions
CHROME_DRIVER_VERSION=`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`
SELENIUM_STANDALONE_VERSION=3.8.1
SELENIUM_SUBDIR=$(echo "$SELENIUM_STANDALONE_VERSION" | cut -d"." -f-2)

# Make sure you have below info in the yum repo file.
cat >/etc/yum.repos.d/google-chrome.repo <<EOL
[google-chrome]
name=google-chrome
baseurl=http://dl.google.com/linux/chrome/rpm/stable/x86_64
enabled=1
gpgcheck=1
gpgkey=https://dl-ssl.google.com/linux/linux_signing_key.pub
EOL

# Remove existing downloads and binaries so we can start from scratch.
yum remove google-chrome-stable
rm ~/selenium-server-standalone-*.jar
rm ~/chromedriver_linux64.zip
rm /usr/local/bin/chromedriver
rm /usr/local/bin/selenium-server-standalone.jar

# Install dependencies.
yum update
yum install -y unzip openjdk-8-jre-headless xorg-x11-server-Xvfb libXi-devel GConf2-devel google-chrome

# Install ChromeDriver.
wget -N https://chromedriver.storage.googleapis.com/2.35/chromedriver_linux64.zip -P ~/
unzip ~/chromedriver_linux64.zip -d ~/
rm ~/chromedriver_linux64.zip
mv -f ~/chromedriver /usr/local/bin/chromedriver
chown root:root /usr/local/bin/chromedriver
chmod 0755 /usr/local/bin/chromedriver

# Install Selenium.
wget -N http://selenium-release.storage.googleapis.com/$SELENIUM_SUBDIR/selenium-server-standalone-$SELENIUM_STANDALONE_VERSION.jar -P ~/
mv -f ~/selenium-server-standalone-$SELENIUM_STANDALONE_VERSION.jar /usr/local/bin/selenium-server-standalone.jar
chown root:root /usr/local/bin/selenium-server-standalone.jar
chmod 0755 /usr/local/bin/selenium-server-standalone.jar

selenium-test.py

import time
from selenium import webdriver
import os
from selenium.webdriver.common.keys import Keys
from pyvirtualdisplay import Display

display = Display(visible=0, size=(800, 800))
display.start()

chrome_options = webdriver.ChromeOptions()
# below trick saved my life
chrome_options.add_argument('--no-sandbox')

# set the folder where you want to save your file
prefs = {'download.default_directory' : os.getcwd()}
chrome_options.add_experimental_option('prefs', prefs)

# Optional argument, if not specified will search path.
driver = webdriver.Chrome('/usr/local/bin/chromedriver',chrome_options=chrome_options)
chrome_options=chrome_options

# Scraping steps
driver.get("http://pypi.python.org/pypi/selenium")
time.sleep(3)
driver.find_element_by_css_selector("#introduction table tbody tr:nth-child(3) td:nth-child(2) a").click()
time.sleep(3)
print(' [*] Finished!')
driver.quit()

Added -y after yum remove google-chrome-stable to avoid manually entering yes.
Added -y after yum update to avoid manually entering yes.