Finally something people didn't answer in 10 seconds! I used your issue to continue to learn more about Powershell. The following works for me, I hope to see how others will slim down this code:
Clear-Host
$ErrorActionPreference = "Continue"
$DebugPreference = "Continue"
$VerbosePreference = "Continue"
@"
## robocopy_helper.ps1 ########################################################
Usage: powershell -ExecutionPolicy Bypass -File ./robocopy_helper.ps1
Purpose: Dry run before Full run of robocopy
History: 07/11/2014 - Created
###############################################################################
"@
## User Supplied Variables
$cSrc = "C:\Temp"
$cDst = "C:\Temp2"
$cLog = "c:\robo.log"
## Robocopy Dry Run
$robo_test = robocopy "$cSrc" "$cDst" /E /L /FP
## Use Regular Expression to grab the following Table
# Total Copied Skipped Mismatch FAILED Extras
# Dirs : 1 0 1 0 0 0
# Files : 1 0 1 0 0 0
$robo_results = $robo_test -match '^(?= *?\b(Total|Dirs|Files)\b)((?! Files).)*$'
## Convert Table above into an array
$robo_arr = @()
foreach ($line in $robo_results){
$robo_arr += $line
}
## Create Powershell object to tally Robocopy results
$row = "" |select COPIED, MISMATCH, FAILED, EXTRAS
$row.COPIED = [int](($robo_arr[1] -split "\s+")[4]) + [int](($robo_arr[2] -split "\s+")[4])
$row.MISMATCH = [int](($robo_arr[1] -split "\s+")[6]) + [int](($robo_arr[2] -split "\s+")[6])
$row.FAILED = [int](($robo_arr[1] -split "\s+")[7]) + [int](($robo_arr[2] -split "\s+")[7])
$row.EXTRAS = [int](($robo_arr[1] -split "\s+")[8]) + [int](($robo_arr[2] -split "\s+")[8])
## If there are differences, lets kick off robocopy again
if ( ($row.COPIED + $row.MISMATCH + $row.FAILED + $row.EXTRAS) -gt 0 ){
robocopy "$cSrc" "$cDst" /MIR /FFT /Z /W:5 /MT:64 /XX /log:$cLog
Invoke-item $cLog
}
else { Write-host "Folders '$cSrc' and '$cDst' are twins" }
Note: I have changed the regular expression above from a period to a space immediately before the asterisk. This eliminates the risk of catching 'files' or 'dirs' or 'totals' in a filename/path. The original line is below for posterity.
jski 2014/07/16
$robo_results = $robo_test -match '^(?=.?\b(Total|Dirs|Files)\b)((?! Files).)$'