Run managed Apple software update download & install with munki

RunManagedAppleSoftwareUpdate.sh

#!/bin/sh

MUNKI="/usr/local/munki/managedsoftwareupdate"
MUNKI_CACHE=$($MUNKI --show-config | /usr/bin/awk -F "'" '/ManagedInstallDir/{print $2}')
APPLESU_FILE="${MUNKI_CACHE}AppleUpdates.plist"

# Verify munki is installed
if [ ! -f "$MUNKI" ]; then
    /bin/echo "Munki not installed. Exiting."
    exit 1
else
    # Run Apple SU check
    /bin/echo "Running Apple software update check ..."
    $MUNKI --applesuspkgsonly
fi

# Install available Apple software updates that don't require logout or restart, if they exist
if [ -f "$APPLESU_FILE" ]; then
    /bin/echo "Apple software updates exist. Attempting to install ..."
    $MUNKI --auto
else
    /bin/echo "No Apple software updates exist. Done."
fi

exit