#*****************************************************************
#
#   Script Name:  dhcpBackup.ps1
#   Version:  1.0
#   Author:  Jason Carter
#   Date:  August 30,  2007
#
#   Description:  Used to backup DHCP logs from the DHCP server
#   to another storage device for archiving purposes.
#
#*****************************************************************

# Get Yestedays Date In Month, Day, Year format
$yesterday = ( Get-Date ( Get-Date ).AddDays(-1) -uformat %m%d%Y )

# Get the first 3 letters of the day name from yesterday
$logdate=( [string]( ( Get-Date ).AddDays(-1).DayofWeek ) ).SubString(0,3)

# Change path to DHCP log folder, copy yesterdays log file to backup location
Set-Location "C:\WINDOWS\System32\dhcp"
Copy-Item "DhcpSrvLog-$logdate.log" "D:\DHCPBACKUP"

# Rename log file with yesterdays date
Set-Location "D:\DHCPBACKUP"
Rename-Item "DhcpSrvLog-$logdate.log" "$yesterday.log"