https://macmule.com/2014/02/07/mavericks-preference-caching/

allow-microsoft-sharepoint-plugin.bash

#!/bin/bash
####################################################################################################
#
# License: https://macmule.com/license/
#
####################################################################################################

# Get the username of the currently logged in user
loggedInUser=$(/bin/ls -l /dev/console | /usr/bin/awk '{ print $3 }')

#################
# Allow the Microsoft Sharepoint Plug-In
#################
/usr/libexec/plistbuddy -c "delete ManagedPlugInPolicies:com.microsoft.sharepoint.browserplugin" /Users/$loggedInUser/Library/Preferences/com.apple.Safari.plist
/usr/libexec/plistbuddy -c "add ManagedPlugInPolicies:com.microsoft.sharepoint.browserplugin dict" /Users/$loggedInUser/Library/Preferences/com.apple.Safari.plist
/usr/libexec/plistbuddy -c "add ManagedPlugInPolicies:com.microsoft.sharepoint.browserplugin:PlugInFirstVisitPolicy string PlugInPolicyAllowNoSecurityRestrictions" /Users/$loggedInUser/Library/Preferences/com.apple.Safari.plist