Fix mach_kernel visibility

gistfile1.txt

#!/bin/bash

# This script checks to see if the /mach_kernel file is visible or hidden.
# The /mach_kernel file should not be visible when viewed from the Finder, 
# so the script will use /usr/bin/chflags to set the /mach_kernel file to be hidden.
#
# Original script by Tim Sutton.
# Link: http://macops.ca/security-updates-leaving-mach_kernel-visible/
#
# For information on how to hide the /mach_kernel
# file, please see this Apple KBase article:
#
# https://support.apple.com/HT203829

if [ -e /mach_kernel ]; then
  if ! /bin/ls -lO /mach_kernel | grep hidden > /dev/null; then
    echo "/mach_kernel not set to be hidden. Re-hiding."
    /usr/bin/chflags hidden /mach_kernel
  fi
fi

exit 0