Internet Explorer for Mac the Easy Way: Run IE 7, IE8, & IE9 Free in a Virtual Machine
Sep 4, 2011
http://osxdaily.com/2011/09/04/internet-explorer-for-mac-ie7-ie8-ie-9-free/
Install Internet Explorer 11 Only
curl -s https://raw.githubusercontent.com/xdissent/ievms/master/ievms.sh | IEVMS_VERSIONS="11" bash