Category Archives: windows

“Snap-in failed to initialize” error message when you open Microsoft Management Console

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When running Microsoft Management Console if you get the error where it fails to initialize, one possible fix could be as from the following link http://support.microsoft.com/default.aspx?Product=winxp&scid=kb;en-us;826282

Fix is
To resolve this behavior, add the %SystemRoot%\System32\WBEM folder to your PATH environment variable. To do so, follow these steps:

1. Right-click My Computer, and then click Properties.
2. On the Advanced tab, click Environment Variables.
3. Under System Variables double-click the PATH environment variable.
4. Type:
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\system32\WBEM

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How to loop through parameters in batch file?

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The following example shows how to loop through parameters in batch file.

c:> TYPE script.bat
@ECHO OFF
:TOP

IF (%1) == () GOTO END
ECHO %1

SHIFT
GOTO TOP

:END
ECHO End

Sample Ouptut:
C:\>.\script.bat aaa bbb
aaa
bbb
End

How to monitor CPU of oracle processes on Windows?

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Using QSlice one can monitor CPU usage for individual thread on a windows box. Qslice can be downloaded from the following url http://www.microsoft.com/downloads/en/details.aspx?familyid=6247BB76-13C5-4E0E-B800-53DC1B84A94C&displaylang=en

By clicking on the oracle.exe in Qslice it displays all threads and CPU usage for each thread, so using the following SQL you can match the corresponding SID.

SQL> select to_char(p.spid, 'xxxxxxxx') threadid, s.sid, s.username, s.program
from v$process p, v$session s
where p.addr=s.paddr;

Sample output:
THREADID SID USERNAME PROGRAM
——— ———- —————————— ————————-
d90 125 ORACLE.EXE (PMON)
1728 187 ORACLE.EXE (VKTM)
1660 1 ORACLE.EXE (GEN0)
d84 64 ORACLE.EXE (DIAG)
1794 126 ORACLE.EXE (DBRM)
144c 188 ORACLE.EXE (PSP0)
…

Script to change date on a computer

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'
' script to change computer date
'
DIM objShell

strComputer = "." ' current host
' get current time
Set objWMIService = GetObject("winmgmts:{(Systemtime)}\\" & strComputer & "\root\cimv2")
Set colOS = objWMIService.ExecQuery("SELECT * FROM Win32_OperatingSystem WHERE Primary=True")

For Each objOS In colOS
Exit For
Next
Wscript.Echo "Current Date: " & strDate
strNow = objOS.LocalDateTime

' loop through to get last 5 date
FOR counter=1 TO 5
' get current system date – 1
dtPrev = DateAdd("d", -1, Date)
' get month
dtMonth = Month(dtPrev)
If dtMonth < 10 Then
dtMonth = "0" & dtMonth
End If

' get day
dtDay = Day(dtPrev)
If dtDay < 10 Then
dtDay = "0" & dtDay
End If

dtStrPrev = Year(dtPrev) & dtMonth & dtDay ' set previous date string
strDate = dtStrPrev & Right(strNow, Len(strNow) – 8) ' set date
Wscript.Echo "Setting Date to: " & dtStrPrev
objOS.SetDateTime strDate ' set new date
' perform task with new date
set objShell = wscript.createObject("wscript.shell")
iReturn = objShell.Run("cmd.exe /C set var=hello", 1, TRUE)
Next

objOS.SetDateTime strNow ' Set the date back to what it was before
Wscript.Echo "Date Reset: " & Date

Output:
C:\temp>cscript c.vbs
Microsoft (R) Windows Script Host Version 5.6
Copyright (C) Microsoft Corporation 1996-2001. All rights reserved.

Current Date: 20100929221421.174000-360
Setting Date to: 20100928
Setting Date to: 20100927
Setting Date to: 20100926
Setting Date to: 20100925
Setting Date to: 20100924
Date Reset: 9/29/2010

Powershell

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Powershell – Powershell is in an interactive shell which supports scripting. You can download this from http://support.microsoft.com/kb/926139

Displays all the command available in Powershell
PS>Get-Command

CommandType Name Definition
———– —- ———-
Cmdlet Add-Content Add-Content [-Path] [-Value] <Object[…
Cmdlet Add-History Add-History [[-InputObject] ] [-Pass…
…

Get-Help [Name] – Help on command with description and parameter it takes
PS>Get-Help Get-Process

NAME
Get-Process

SYNOPSIS
Gets the processes that are running on the local computer.

SYNTAX
Get-Process [[-name] ] []

Get-Process -id []
Get-Process -inputObject []
….

Process Information

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Process Information – Powershell has feature allows one to list process information, list process by name. Also one can terminate process using “Stop-Process”

PS>Get-Process -Name <program name>

Example:
PS>Get-Process -Name gvim

Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName
——- —— —– —– —– —— — ———–
95 7 3208 9496 65 0.16 172 gvim
108 7 3696 4900 65 0.95 1456 gvim

PS>Get-Process -Verbose

Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName
——- —— —– —– —– —— — ———–
282 20 7944 13256 105 0.95 2824 AdobeARM
95 8 1468 4404 29 0.00 2652 alg
60 5 2164 5320 54 0.09 760 atchk
…

— store process in a variable
PS>$process = Get-Process gvim
— print the value in the variable
PS>$process

Handles NPM(K) PM(K) WS(K) VM(M) CPU(s) Id ProcessName
——- —— —– —– —– —— — ———–
92 7 3128 9484 62 0.16 172 gvim
108 7 3696 4900 65 0.95 1456 gvim

— Show process with name gvim and using whatif option it let one view and the operation that will be applied on it
PS>Get-Process -Name gvim | Stop-Process -whatif
What if: Performing operation “Stop-Process” on Target “gvim (172)”.
What if: Performing operation “Stop-Process” on Target “gvim (1456)”.

— Show process with name gvim and using whatif option it let you confirm before the process is killed
PS>Get-Process -Name gvim | Stop-Process -confirm

Confirm
Are you sure you want to perform this action?
Performing operation “Stop-Process” on Target “gvim (172)”.
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is “Y”): N

Confirm
Are you sure you want to perform this action?
Performing operation “Stop-Process” on Target “gvim (1456)”.
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is “Y”): Y