Open URL from command line on CSIL
These may launch a browser if you have access to X11 from your terminal.
google-chrome http://example.org
firefox http://example.org
Other commands to open URL from command line on Linux
These may launch a browser if you have access to X11 from your terminal.
Your mileage may vary: these may or may not work on any given Linux system
sensible-browser http://example.org
xdg-open http://example.org
x-www-browser http://example.org
Based on https://askubuntu.com/questions/8252/how-to-launch-default-web-browser-from-the-terminal
Get contents of URL (no graphical browser)
This is particularly useful for just testing whether a site is up, and/or for RESTFul APIs.
curl http://example.org