gistfile1.txt

#!/bin/bash
#1.4
#--------------------------------------------------------------------------------------------------
#-- psuDeleteHomeDirs
#--------------------------------------------------------------------------------------------------
# Program    : psuDeleteHomeDirs
# To Complie : n/a
#
# Purpose    : Delete home directories
#
# Called By  :
# Calls      :
#
# Author     : Rusty Myers <rzm102@psu.edu>
# Based Upon :
#
# Note       : 
# 
# Revisions  : 
#           2016-05-25 <rzm102>   Initial Version
#           2017-06-30 <rzm102>   Adding secure erase to home folders and running with fork
#           2017-07-05 <rzm102>   Adding new path for temp homes being delete
#
#--------------------------------------------------------------------------------------------------

lastmod () {
     last_mod_seconds=$(echo $(( $(date +%s) - $(stat -f%c "$user") )))
}

help () {
	echo "Use $0 -t [hours] to call script with custom hour value or use defaults to set for system:"
	echo "defaults write /Library/Preferences/edu.psu.deletehomes.plist delete_time 15"
	echo "Use $0 -i [user] to call script with custom home dir to ignore or use defaults to set for system:"
	echo "defaults write /Library/Preferences/edu.psu.deletehomes.plist ignored_users -array rzm102 jde6"
	echo "Leave both previous options blank to use defaults"
	echo "$0 -t 0 -i \" help dude test \""
	echo "use -s to secure erase home folders"
	echo "use -b to run erase in the background"
}

# internal default value
delete_home_hours=48
last_mod_seconds=0
background="false"

# path to users
user_path="/Users"

# list of ignored directories
ignored_folders=( "Shared" "psuguest" "Guest" )

# get plist values
preference_file="/Library/Preferences/edu.psu.deletehomes.plist"
if [[ -e "$preference_file" ]]; then
	# get home dir delete hours from plist
	delete_home_hours_pref=$(defaults read "$preference_file" "delete_time")
	echo "Found pref delete time: $delete_home_hours_pref"
	# set delete home hours to results of preference, or the defaut value if it fails
	delete_home_hours=${delete_home_hours_pref:-$delete_home_hours}
	# get ignored users into a bash style array
	ignored_homes_pref=$(echo $(defaults read "$preference_file" "ignored_users" | tr -d \(\), | tr '\n' ' '))
	echo "Found pref ignored homes: $ignored_homes_pref"
fi

# get arguments
while getopts t:i:sb opt; do
	case "$opt" in
		t) delete_home_hours="${OPTARG}";;
		i) ignored_folders=( ${ignored_folders[@]} "$OPTARG" );;
		s) secure="P";;
		b) background="true";;
		h) 
			help
			exit 0;;
		\?)
			help
			exit 0;;
	esac
done
shift `expr $OPTIND - 1`


echo "Using the delete home directory time of $delete_home_hours hours"
if [[ "$delete_home_hours" < 0 ]]; then
	echo "Received time to ignore deleting homes. Exiting..."
	exit 0
fi

# turn hours to seconds
delete_home_seconds=$(( delete_home_hours * 60 * 60 ))
echo "Deleting home directories after $delete_home_seconds seconds"
ignored_folders=( ${ignored_folders[@]} ${ignored_homes_pref[@]} )
echo "Ignoring these homes: ${ignored_folders[@]}"

# List users on the computer
for user in "$user_path"/*;
do
	# echo "Checking $user : $(basename "$user")"
	ignore=0
    for excluded in "${ignored_folders[@]}"
    do
		# echo "Excluded: $excluded"
        if [[ "$excluded" == "$(basename "$user")" ]]; then
			ignore=1
		fi
    done
	if (( $ignore )); then
		echo "--Ignoring $user"
	else
		
		echo "++Checking age of $user"
		# check age of folders
		lastmod "$user"
		echo "---> Age of $user = $last_mod_seconds"
		if [[ $last_mod_seconds -gt $delete_home_seconds ]]; then
			shortUserPath=$(basename "$user")
			# move home to temp location
			tempLocation="/Library/CLMadmin/CLMtemp/DeleteHomes/"
			mkdir -p "$tempLocation"
			echo "---> Moving Home $user to $tempLocation$shortUserPath"
			mv "$user" "$tempLocation$shortUserPath"
			echo "---> Deleting Home Folder $tempLocation$shortUserPath"
			if [[ "$background" == "true" ]]; then
				nohup rm -Rf"$secure" "$tempLocation$shortUserPath" &
			else
				nohup rm -Rf"$secure" "$tempLocation$shortUserPath"
		fi
	fi
done

exit 0