I'm having an issue with the if then.
$result = getMachineInfo $rlprddeploy $mdt
"-MachineID- -LastContactAt- -LastIP- -Deployment Receiver Version-"
$machine = $result.MachineID
$result | % { '{0,-10} {1,23} {2,16} {3,20}' -f $_.MachineID, $_.LastContactAt, $_.LastIP, $_.DeploymentReceiverVersion }
#$result | ft -auto
if $_.DeploymentReceiverVersion is less than 5.46.54 then I'm going to send a file to do an update. If the version is 5.55 then nothing needs to be done.
I've been banging my head against this for a week now and I can't figure it out. Every $_.blahblah is information pulled from an SQL table on a server.
We've been sending out updates manually and I'd like to stop that.
PowerShell's If statement can be written just like any C like language:
if ($true) {Write-Host "True Yo" }
That said, you haven't posted exactly what your issues is, so this somewhat generic:
Creating a custom object:
$dep = New-Object psobject -Property #{DeploymentReceiverVersion = "5.000.11"; AppName = "OxenTails" }
Comparing this is going to pose a potential problem:
$dep.DeploymentReceiverVersion.GetType()
The version is a string, so the comparison is comparing strings:
$dep.DeploymentReceiverVersion -lt "5.000.12"
gives an expected result, but
$dep.DeploymentReceiverVersion -lt "5.000.101"
does not.
This however could work to compare each set of numbers:
$parts = $dep.DeploymentReceiverVersion.Split('.')
if ([int]$parts[0] -lt 6 -and [int]$parts[1] -lt 001 -and [int]$parts[2] -lt 101) {
#Do Stuff!
}
Additionally, as pointed out by #TheMadTechnician there is the System.Version type [Version]
It can be used with one of the overload methods:
[Version]::new(parts[0],parts[1], parts[2]) -lt [Version]::new(5,46,54)
Which is marginally more readable.
First time user, looking for help with a script that's been driving me crazy.
Basically, I need to create a set number of files of an exact size (512KB, 2MB, 1GB) to test a SAN. These files need to be filled with random text so that the SAN doesn't catch the nuls and does actually allocate the blocks - that's also the reason I couldn't just use fsutils.
Now, I've been messing with the new-bigrandomfile by Verboon and tweaking it to my needs.
However I'm getting the error:
You cannot call a method on a null-valued expression.
At L:\random5.ps1:34 char:9
+ $stream.Write($longstring)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
This is the bit of code I've come up with so far; I'll add a loop at the end to copy the file I just created N times so to fill up the lun.
Set-Strictmode -Version 2.0
#temp file
$file = "c:\temp\temp.rnd"
#charset size
$charset = 64
#Block Size
$blocksize = 512
#page size
$Pagesize = 512KB
#Number of blocks in a page
$blocknum = $Pagesize / $blocksize
#Resulting/desired test file size
$filesize = 1GB
#number of pages in a file
$pagenum = $filesize / $Pagesize
# create the stream writer
$stream = System.IO.StreamWriter $file
# get a 64 element Char[]; I added the - and _ to have 64 chars
[char[]]$chars = 'azertyuiopqsdfghjklmwxcvbnAZERTYUIOPQSDFGHJKLMWXCVBN0123456789-_'
1..$Pagenum | ForEach-Object {
# get a page's worth of blocks
1..$blocknum| ForEach-Object {
# randomize all chars and...
$rndChars = $chars | Get-Random -Count $chars.Count
# ...join them in a string
$string = -join $rndChars
# repeat random string N times to get a full block string length
$longstring = $string * ($blocksize / $charset)
# write 1 block to file
$stream.Write($longstring)
# release resources by clearing string variables
Clear-Variable string, longstring
}
}
$stream.Close()
$stream.Dispose()
# release resources through garbage collection
[GC]::Collect()
$file.Close()
I've tried a gazillion variants like:
$stream = [System.IO.StreamWriter] $file
$stream = System.IO.StreamWriter $file
$stream = NewObject System.IO.StreamWriter $file
Of course, being a total noob at powershell, I've tried using quotes, brackets, provided the full path instead of the variable, etc. All (or most) seem to be valid syntax variants, according to a ton of examples I found online, but the output is still the same.
In case you have any improvement to suggest or alternative way to perform this task I'm all ears.
Edited the script above: just a couple of " for $file made the error disappear, - thanks LinuxDisciple; however, the file gets created but stays at 0 bytes and the script stuck in a loop.
Fix your instantiation of StreamWriter to any of these correct variants:
$stream = [System.IO.StreamWriter]::new($file)
$stream = [IO.StreamWriter]::new($file) # the default namespace may be omitted
$stream = New-Object System.IO.StreamWriter $file
You can specify encoding:
$stream = [IO.StreamWriter]::new(
$file,
$false, # don't append
[Text.Encoding]::ASCII
)
See StreamWriter on MSDN for available constructors and parameters.
PowerShell ISE offers autocomplete with tooltips:
type [streamw and press Ctrl-Space to autocomplete the full .NET class name
type ]:: to see the available methods and properties
type new and press Ctrl-Space to see the constructor overrides
whenever needed, put the caret at the method name and press Ctrl-Space for the tooltip
I know nothing about powershell but a few things:
Are you sure $longstring has a value before you call stream.Write()? It sounds like it's null and that's why the error. If you can somehow output the value of $longstring to the console, it would help you make sure that it has a value.
Also, troubleshoot the code with a simplified version of your code, so that you can pinpoint what's going on, for example
$file = c:\temp\temp.rnd
$stream = System.IO.StreamWriter $file
$longstring = 'whatever'
$stream.Write($longstring)
Good morning stackoverflow. I have a PowerShell script that is executing a SQL query against an Oracle database and then taking the results and passing them to a local shell command. It works, mostly. What is happening is some of the results are being dropped and the only significance I can see about these is that they have a couple of columns that have null values (but only 2 out of the 8 columns that are being returned). When the query is executed in sQL developer I get all expected results. This issue applies to the $eventcheck switch, the $statuscheck works fine. The Powershell script is below:
param(
[parameter(mandatory=$True)]$username,
[parameter(mandatory=$True)]$password,
$paramreport,
$paramsite,
[switch]$eventcheck,
[switch]$statuscheck
)
$qry1 = Get-Content .\vantageplus_processing.sql
$qry2 = #"
select max(TO_CHAR(VP_ACTUAL_RPT_DETAILS.ETLLOADER_OUT,'YYYYMMDDHH24MISS')) Completed
from MONITOR.VP_ACTUAL_RPT_DETAILS
where VP_ACTUAL_RPT_DETAILS.REPORTNUMBER = '$($paramreport)' and VP_ACTUAL_RPT_DETAILS.SITE_NAME = '$($paramsite)'
order by completed desc
"#
$connString = #"
Provider=OraOLEDB.Oracle;Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST="HOST")(PORT="1521"))
(CONNECT_DATA=(SERVICE_NAME="SERVICE")));User ID="$username";Password="$password"
"#
function Get-OLEDBData ($connectstring, $sql) {
$OLEDBConn = New-Object System.Data.OleDb.OleDbConnection($connectstring)
$OLEDBConn.open()
$readcmd = New-Object system.Data.OleDb.OleDbCommand($sql,$OLEDBConn)
$readcmd.CommandTimeout = '300'
$da = New-Object system.Data.OleDb.OleDbDataAdapter($readcmd)
$dt = New-Object System.Data.DataTable
[void]$da.fill($dt)
$OLEDBConn.close()
return $dt
}
if ($eventcheck)
{
$output = Get-OLEDBData $connString $qry1
ForEach ($lines in $output)
{
start-process -NoNewWindow -FilePath msend.exe -ArgumentList #"
-n bem_snmp01 -r CRITICAL -a CSG_VANTAGE_PLUS -m "The report $($lines.RPT) for site $($lines.SITE) has not been loaded by $($lines.EXPDTE)" -b "vp_reportnumber='$($lines.RPT)'; vp_sitename='$($lines.SITE)'; vp_expectedcomplete='$($lines.SIMEXPECTED)'; csg_environment='Production';"
"# # KEEP THIS TERMINATOR AT THE BEGINNING OF LINE
}
}
if ($statuscheck)
{
$output = Get-OLEDBData $connString $qry2
# $output | foreach {$_.completed}
write-host -nonewline $output.completed
}
So that you can see the data, below is a csv output from Oracle SQL Developer with the ACTUAL results to the query that is being referenced by my script. Of these results lines 4, 5, 6, 7, 8, 10 are the only ones being passed along in the ForEach loop, while the others are not even captured in the $output array. If anyone can advise of a method for getting all of the results passed along, I would appreciate it.
"SITE","RPT","LSDTE","EXPDTE","CIMEXPECTED","EXPECTED_FREQUENCY","DATE_TIMING","ETME"
"chrcse","CPHM-054","","2014/09/21 12:00:00","20140921120000","MONTHLY","1",
"chrcse","CPSM-226","","2014/09/21 12:00:00","20140921120000","MONTHLY","1",
"dsh","CPSD-176","2014/09/28 23:20:04","2014/09/30 04:00:00","20140930040000","DAILY","1",1.41637731481481481481481481481481481481
"dsh","CPSD-178","2014/09/28 23:20:11","2014/09/30 04:00:00","20140930040000","DAILY","1",1.4162962962962962962962962962962962963
"exp","CPSM-610","2014/08/22 06:42:10","2014/09/21 09:00:00","20140921090000","MONTHLY","1",39.10936342592592592592592592592592592593
"mdc","CPKD-264","2014/09/24 00:44:32","2014/09/30 04:00:00","20140930040000","DAILY","1",6.35771990740740740740740740740740740741
"nea","CPKD-264","2014/09/24 01:00:31","2014/09/30 03:00:00","20140930030000","DAILY","1",6.34662037037037037037037037037037037037
"twtla","CPOD-034","","2014/09/29 23:00:00","20140929230000","DAILY","0",
"twtla","CPPE-002","2014/09/29 02:40:35","2014/09/30 06:00:00","20140930060000","DAILY","1",1.27712962962962962962962962962962962963
"twtla","CPXX-004","","2014/09/29 23:00:00","20140929230000","DAILY","0",
It appears, actually, that somehow a comment that was in the query was causing this issue. I removed it and the results started returning normal. I have no idea why this would be the case, unless it has to do with the way the import works (does it import everything as one line?). Either way, the results are normal now.
I have an Application, that runs multiple instances of itself. e.g
AppName.exe instance1
AppName.exe instance2
AppName.exe instance3
Using Powershell v2 I am trying to create a simple script that given an array of AppNames and instances, it loops through them, checks if they are running, and then shuts them down.
I figured the best way to do this would be check for each instance, if found capture it's processID, and pass that to the stop-process cmdlet.
BUT, I can't figure out how to get the process id.
So far I have:
$appName = "AppName.exe"
$instance = "instance1"
$filter = "name like '%"+$appName+"%'"
$result = Get-WmiObject win32_process -Filter $filter
foreach($process in $result )
{
$desc = $process.Description
$commArr = $process.CommandLine -split"( )"
$inst = $commArr[2]
$procID = "GET PROCESS ID HERE"
if($inst -eq $instance)
{
Stop-Process $procID
}
}
Can anyone tell me where to get the process ID from please?
you can use the get-process cmdlet instead of using wmi :
$procid=get-process appname |select -expand id
$procid=(get-process appname).id
When using Get-WmiObject win32_process ..., the objects returned have an attribute named ProcessId.
So, in the question, where you have:
$procID = "GET PROCESS ID HERE"
use:
$procID = $process.ProcessId
You could also use that in the $filter assignment, e.g.
$filter = "ProcessId=1234"
just starting to learn loops and arrays. i understand how to call a single variable in an array ie:
$animals = gc "c:\temp\animals.txt"
foreach ($animal in $animals)
{write-host "The"$animal "sleeps tonight."}
what i'm trying to figure out is how to call two different variables from two different arrays...ie:
$animals = gc "c:\temp\animals.txt"
$colors = gc "c:\temp\colors.txt"
this is the part where I'm confused. how do I call a foreach loop to cycle though both files simultaneously?
desired output: The white lion sleeps tonight, The black panther sleeps tonight, etc...
One way is to use arry indexing. Assuming both files have same line count:
$animals = gc c:\temp\animals.txt
$colors = gc c:\temp\colors.txt
for($i=0; $i -lt $animals.length; $i++)
{
#print first line from animals
$animals[$i]
#print first line from colors
$colors[$i]
}
Assuming you have two text files (with same no. of entries) in C:\ you can write something like this -
$c = 0
$animal = Get-Content C:\Animal.txt
Get-Content C:\Color.txt | Foreach-Object{
Write-Host "The $_ $($animal[$c]) sleeps at night"
$c++
}