Specify location of backup log when doing powershell backup

Question

I am backing up a Windows Server 2008 R2 computer with the following commands:
Add-PsSnapin Windows.ServerBackup
$lcBackupPath = "\\mybackupserver\mybackuppath"
$policy=New-WBPolicy
$ListOfFileSpecs=New-WBFileSpec -FileSpec c:\
Add-WBFileSpec -Policy $policy -FileSpec $ListOfFileSpecs
$BackupTargetVolume=New-WBBackupTarget -NetworkPath $lcBackupPath
Add-WBBackupTarget -Policy $policy -Target $BackupTargetVolume
Add-WBSystemState -Policy $policy
Add-WBBareMetalRecovery -Policy $policy
Start-WBBackup -Policy $policy
I need to email a log of whether or not the backup was successful.
I can get the result of the most previous backup like this:
get-wbjob -previous 1
The only useful information I get from this is jobstate="Job Completed", start time, end time, jobitems, and versionid
It contains two additional blank items called SuccessLogPath and FailureLogPath
how do I set the SuccessLogPath and FailureLogPath for the backup?
I need to know if the job was successful or failed. 

Answer 1

try the below script.. 
=========================================================================
# filename: SystemStateBkp-With-Retentionof-5Weeks.ps1
# author: Anantesh Marandi
# created: 27/01/2013
# Wbadmin Backup Script
# This script is called by Windows Scheduled Tasks to run daily
# This script maintains 35 daily backup files (5 weeks Backups) and deletes any others
# The backup job runs and any errors are emailed
####START####
#Remove old backups - keepfiles files for 5 weeks (35 days)
$comp = gc env:computername
$share = 'PUT-IN-THE-LOCATION-WHERE-YOUR-BACKUPS-ARE-SAVED-THIS-CAN-BE-NETWORK-PATH-TOO'
$folder = $share + '\'  +$comp + '\' 
# set folder path
$dump_path = $folder
# set min age of files
$max_days = “-35"
# get the current date
$curr_date = Get-Date
# determine how far back we go based on current date
$del_date = $curr_date.AddDays($max_days)
# delete the files
Get-ChildItem $dump_path -Recurse | Where-Object { $_.LastWriteTime -lt $del_date } | Remove-Item
####END#####
#script will backup computer to backup location
clear
$date = get-date -UFormat %Y-%m-%d
$comp = gc env:computername
$share = 'PUT-IN-THE-LOCATION-WHERE-YOUR-BACKUPS-ARE-SAVED-THIS-CAN-BE-NETWORK-PATH-TOO'
$folder = $share + '\'  +$comp + '\' + $date + '\'
$log = $folder + $comp + '.log'
#create backup folder
try {
if ( ! (Test-Path  -Path $folder ) ){
New-Item  -Path $folder  -ItemType Directory -ErrorAction Stop
catch [exception] {
$result = "$result <br> Computer $comp FAILED to create folder <br> <br>"
# create log file
try {
if ( ! (Test-Path  -Path $log ) ){
New-Item  -Path $log   -ItemType File -ErrorAction Stop
catch [exception] 
$result = "$result <br> Computer $comp FAILED to create log file <br> <br>"
$start = Get-Date
$process = start -Wait  wbadmin.exe -ArgumentList "start SYSTEMSTATEBACKUP -backuptarget:$folder -quiet" -PassThru -NoNewWindow -RedirectStandardOutput $log
$code = $process.exitcode 
if ($code  -eq 0 ){
$end = Get-Date
$result = "$result backup complete on $comp, user $user <br> Started: $start <br>  Ended: $end <br> <br>"
$status = "good"
start net -ArgumentList "use i: /delete /Y" -NoNewWindow 
else { 
$end = Get-Date
$result= "$result Backup Failed on $comp, <br> Started: $start <br>  Ended: $end  <br> <br>"
$status = "BAD" }
$loghtmlfile = $log + '.html'
$File = Get-Content $log
$FileLine = @()
Foreach ($Line in $File) {
 $MyObject = New-Object -TypeName PSObject
 Add-Member -InputObject $MyObject -Type NoteProperty -Name backupstatus -Value $Line
 $FileLine += $MyObject
$FileLine | ConvertTo-Html -Property backupstatus | Out-File $loghtmlfile
$loghtml = gc $loghtmlfile 
$result = "$result $loghtml"
#Setup Email Report
$mail = New-Object system.net.Mail.MailMessage 
$mail.From  = "YOUR-EMAIL-ADDRESS"
$mail.To.add("TO-THE-EMAIL-ADDRESS-WHERE-YOU-WANT-THE-REPORT-TO-BE-SENT")
$mail.Subject = "Backup Script Results $status $comp $date"
$smtp = new-object system.Net.Mail.SmtpClient("YOUR-SMTP-ADDRESS")
$mail.IsBodyHtml = "True"
$mail.body = $result 
$smtp.send($mail)