powershell samples

1,导出至EXCEL

$arr =New-Object System.Collections.ArrayList
$i = 1
$pstablelist = @();
$array =get-user
do
{
IF ($array[$i].RecipientType -eq "UserMailbox")
{

$mbx=Get-CASMailbox $array[$i].name
   IF($mbx.OWAEnabled)
   {
    $arr.add("name:"+$array[$i].name+"    title:"+$array[$i].title );

    $table = @{"name"=$array[$i].name;"title"=$array[$i].title;}; 

    $pstable = New-Object -TypeName PSObject -Prop $table; 

    $pstablelist += $pstable;
   }
}

$i++;

}
while ($i -lt $array.Length)
$pstablelist | Export-Csv c:\test.csv -NoTypeInformation

2,

$ob1 = "foo"

Try
 {
 $ErrorActionPreference1 = "stop"
 $ErrorActionPreference11 = "stop"
 $ErrorActionPreference122 = "stop"
 $ErrorActionPreference221 = "stop"
$ob11= 11/0;
 }
Catch [System.Management.Automation.PSArgumentException]
 {
  "invalid object"
 }
Catch [System.Exception]
 {
   $_.Exception.Message;
  "caught a system exception"
 }
Finally
 {
  "end of script"
 }

 3，过滤

Get-MessageTrackingLog|?{$_.sourcecontext -eq '*12*'}|fl

Get-MessageTrackingLog|?{$_.sourcecontext -like '*12*'}|fl

Operator	Description	Example	Result
-eq	equals	$a = 5 ; $a -eq 4	False
-ne	not equal	$a = 5 ; $a -ne 4	True
-gt	greater than	$a = 5 ; $a -gt 4	True
-ge	greater than or equal to	$a = 5 ; $a -ge 5	True
-lt	less than	$a = 5 ; $a -lt 5	False
-le	less than or equal to	$a = 5 ; $a -le 5	True
-like	wildcard comparison	$a = "This is Text" ; $a -like "Text"	False
-notlike	wildcard comparison	$a = "This is Text" ; $a -notlike "Text"	True
-match	regular expression comparison	$a = "Text is Text" ; $a -match "Text"	True
-notmatch	regular expression comparison	$a = "This is Text" ; $a -notmatch "Text$"	False

http://blogs.technet.com/b/heyscriptingguy/archive/2009/05/06/how-can-i-use-the-if-statement-in-windows-powershell.aspx

5,
Search-MailboxAuditLog js1 -ShowDetails -ResultSize 111/Unlimited | Sort-Object ItemSubject|fl itemsubject,identity -First 30

6, get the  compressed folder\files in  the  path C:\folder by powershell

gci -r C:\folder\ | where {$_.attributes -match "compressed"} | foreach {  $_.fullname }

gci -r C:\folder\ | where {$_.attributes -match "enr"} | foreach {  $_.fullname }

http://serverfault.com/questions/452529/view-find-all-compressed-files-on-the-server