Powershell Replace column data - powershell

I have the following command:
$WSUSClients = Get-WsusComputer | Select-Object FullDomainName, OSDescription, LastSyncResult, RequestedTargetGroupName
$WSUSClients | ForEach-Object {$_.FullDomainName -replace ('.corp.com','')} | Set-Content 'C:\Script\WSUS Clients\WSUSclients.csv'
Last part it not correct I want to replace the .corp.com from the column FullDomainname and still leave the other columns but don't get this working.

just use a custom column:
$prop = #{
name = 'FullDomainName'
Expression = {$_.FullDomainName.replace('.corp.com','')}
}
$WSUSClients = Get-WsusComputer | Select-Object $prop, OSDescription, LastSyncResult, RequestedTargetGroupName $WSUSClients | Set-Content 'C:\Script\WSUS Clients\WSUSclients.csv'

Related

Group csv column data and display count using powershell

I am having below data in my csv
"Path_Name","Lun_Number","status"
"vmhba0:C2:T0:L1","1","active"
"vmhba0:C1:T0:L1","1","active"
"vmhba1:C0:T7:L230","230","active"
"vmhba1:C0:T7:L231","231","active"
"vmhba1:C0:T7:L232","230","active"
"vmhba1:C0:T7:L235","231","active"
"vmhba1:C0:T7:L236","230","active"
I need to group the data based on Lun_Number and create a column to get the count of those Lun_Number
expected output
"Path_Name","Lun_Number","status","Count"
"vmhba0:C2:T0:L1","1","active", 2
"vmhba0:C1:T0:L1","1","active",
"vmhba1:C0:T7:L230","230","active",3
"vmhba1:C0:T7:L231","230","active",
"vmhba1:C0:T7:L232","230","active",
"vmhba1:C0:T7:L235","231","active",2
"vmhba1:C0:T7:L236","231","active",
Please let me know how can I do that. I tried group-object, sort-object but it doesn't seems to be working
Below is the code which is generating the above csv
$status_csv = Import-Csv -Path E:\pathstate.csv
$path_csv = Import-Csv -Path E:\PathInfo.csv
foreach($row in $path_csv)
{
$path_1 = $row.Path_Name
$path_2 = $status_csv | where{$_.Name -match "^$path_1$" }
[PsCustomObject]#{
Path_Name = $path_1
Lun_Number = $row.Lun_Number
status = $path_2.PathState
} | Export-Csv -Path E:\FinalReport.csv -NoTypeInformation -Append | Group-Object Lun_Number
}
I can see the approach you're trying to take, and I think something like the following could be useful:
$path_csv = Import-Csv 'sample.csv'
$Unique_Counts = $path_csv.Lun_Number | Group-Object | Select-Object Name,Count
This will help give you the output that you can use as part of your mapping for later, where you can make it dynamic to match with the row you're checking. Which you can use to pull out through a loop, such as $Unique_Counts.
Meaning that it you do something like $Unique_Counts[0].Count, will be able to grab the Lun_Number associated to it (listed as Name in the array).
Name Count
---- -----
1 2
230 3
231 2
If you're okay with having the count for each row, you can then use something like what you have:
foreach($row in $path_csv)
{
$path_1 = $row.Path_Name
[PsCustomObject]#{
Path_Name = $path_1
Lun_Number = $row.Lun_Number
status = $row.status
count = $Unique_Counts | Where-Object {$_.name -eq $row.Lun_Number} | Select-Object -ExpandProperty Count
} | Export-Csv $finalReport -NoTypeInformation -Append
}
This then provides me with the following outcome:
"Path_Name","Lun_Number","status","count"
"vmhba0:C2:T0:L1","1","active","2"
"vmhba0:C1:T0:L1","1","active","2"
"vmhba1:C0:T7:L230","230","active","3"
"vmhba1:C0:T7:L231","231","active","2"
"vmhba1:C0:T7:L232","230","active","3"
"vmhba1:C0:T7:L235","231","active","2"
"vmhba1:C0:T7:L236","230","active","3"
Hope this helps, it may be useful to understand more with the use case, but at least you can grab the unique count for all Lun_numbers. Just has to put it in all rows too.

How to use PS calculated properties to collate data into a cell?

I'm stumped on this one. I have a PS custom object with strings only and I want to build a report where I'm outputting strings of data into a new pipeline output object.
$myObjectTable |
Select-Object #{
n = "OldData";
e = {
$_ | Select-Object name, *_old | Format-List | Out-String
}
},
#{
n = "NewData";
e = {
$_ | Select-Object name, *_new | Format-List | Out-String
}
}
Running this produces blank output.
I tried running the code above with just the $_ object in the expressions, but I only got ... as the output. Wrapping the expressions in parenthesis did not change the output.
The ... as property value means that the value is either a multi-line string or it just didn't fit in a tabular format. See Using Format commands to change output view more details.
You can fix those empty lines added by Out-String using Trim. Then if you want to properly display this object having multi-line property values, Format-Table -Wrap will be needed.
Here is a little example:
[pscustomobject]#{
Name = 'foo'
Something_Old = 123
Something_New = 456
} | ForEach-Object {
[pscustomobject]#{
OldData = $_ | Format-List name, *_old | Out-String | ForEach-Object Trim
NewData = $_ | Format-List name, *_new | Out-String | ForEach-Object Trim
}
} | Format-Table -Wrap
Resulting object would become:
OldData NewData
------- -------
Name : foo Name : foo
Something_Old : 123 Something_New : 456

Add a column to a csv file and fill up new column based on an existing column powershell

I have been trying to add a new column to a csv file and populating the new column based on value in an existing column.
I have a table like this:
|name | number | state | desc|
| ---- | ------ |-------|-----|
|a | 1 | n | i |
|b | 2 | n | j |
|c | 3 | l | j |
|d | 4 | m | k |
I want to add a new column data and populate it based on number column matching with an array.
This is my code so far:
$a=("a","b","c")
$b=("p","q","r")
.
.
.
$c= import-csv -Path "C:\..."
$b |where-object {filtered the file based on some criteria}| select-object number, state, desc, #{Name="data"; Expression={Foreach-object {if ($_.number in $a){$_data = "x"}
elseif($_.number in $b){$_.data = "y"}.......} | export-csv -notypeinformation -path "C:\...."
The script runs but do not populate the new column. Please help
You've got the right idea. Import-Csv will produce an array of objects and you can use Select-Object to add calculated properties, then pipe again to Export-Csv. However, it's not exactly clear from the description or the example code what the expression should be. How do you want to define the new "data" property?
For now I'll work with what we have. The array variables $a & $b will never match anything. Also you can't use ForEach-Object like that, nor will assigning to $data work. The returning value of the Expression script block gets assigned to the property you named data. The following example demonstrates the point:
$a = ( "1", "2", "3")
$b = ( "4", "5", "6")
Import-Csv -Path "C:\temp\12-22-20.csv"|
Select-Object number, state, desc,
#{Name = 'Data'; Expression = { If( $_.Number -in $a ){ 'x' } elseif( $_.Number -in $b ){ 'y' } Else { $null }}} |
Export-Csv -Path "C:\temp\12-22-20_New.csv" -NoTypeInformation
The resulting Csv file will look something like:
number state desc Data
------ ----- ---- ----
1 n i x
2 n j x
3 l j x
4 m k y
Update: Example Using Add-Member
You do not need to use a loop to add the property:
$a = ( "1", "2", "3")
$b = ( "4", "5", "6")
Import-Csv -Path "C:\temp\12-22-20.csv" |
Add-Member -MemberType ScriptProperty -Name "data" -Value { If( $this.Number -in $a ){ 'x' } elseif( $this.Number -in $b ){ 'y' } Else { $null }} -PassThru |
Export-Csv -Path C:\temp\12-22-20_New.csv -NoTypeInformation
By using a MemberType of ScriptProperty we can make a slight modification to script block, replacing $_ with $this The pipe is an implicit loop. I'm not sure if there are any detractions to using a ScriptProperty, but this exports as expected. This approach doesn't require storing the output in $c, but -PassThru would facilitate that if preferred.
99% of the time Select-Object is used for this. The only difference I'm aware of it Select-Object converts the objects to PSCustomObjects. Get-Member will preserve the underlying type, however Import-Csv only outputs PSCustomObjects in the first place, so there's no impact here.
Try iterating over the $c array of imported objects and add the new property to all objects. You want to make sure the new column exists in all of the objects. You can either use Select-Object as in your example, or you can use Add-Member to add it to the imported object.
$a=("a","b","c")
$b=("p","q","r")
...
$c = Import-Csv -Path "C:\..."
$c | ForEach-Object {
$value = ""
# custom logic for value of "data"
# if (...) { $value = ... }
$_ | Add-Member -MemberType NoteProperty -Name "data" -Value $value
}
$c | Export-Csv -NoTypeInformation -path "C:\...."

How do I join two lines in PowerShell

I'm trying to get Information about our VMs in Hyper-V via PowerShell.
This is what I got so far:
$Path = 'c:/VM.csv'
"Name,CPUs,Dynamischer Arbeitsspeicher,RAM Maximum (in MB),RAM Minimum (in MB), Size" > $Path
$line1 = Get-VM | %{($_.Name, $_.ProcessorCount, $_.DynamicMemoryEnabled, ($_.MemoryMaximum/1MB), ($_.MemoryMinimum/1MB)) -join ","}
$line2 = Get-VM –VMName * | Select-Object VMId | Get-VHD | %{$_.FileSize/1GB -join ","}
$out = $line1+","+ $line2
Write-Output $out | Out-File $Path -Append
Import-Csv -Path $Path | Out-GridView
The Problem is that the second object ($line2) should be in the same column as $line1. As you can see, currently the information about the size of the VMs ($line2) is written in rows under the output of $line1. Also the order is wrong.
Any idea what is wrong with my code?
Thanks in advance.
I think you messed it up a little,
Export-CSV will do the job without the need to manually define the csv structure.
Anyway, regarding your code I think you can improve it a little, (I don't have hyper-v to test this, but I think it should work)
What I've done is create a results array to hold the final data, then using foreach loop i'm iterating the Get-VM Results and creating a row for each VM, at the end of each iteration I'm adding the row to the final results array, so:
$Results = #()
foreach ($VM in (Get-VM))
{
$Row = "" | Select Name,CPUs,'Dynamischer Arbeitsspeicher','RAM Maximum (inMB)','RAM Minimum (in MB)',Size
$Row.Name = $VM.Name
$Row.CPUs = $VM.ProcessorCount
$Row.'Dynamischer Arbeitsspeicher' = $VM.DynamicMemoryEnabled
$Row.'RAM Maximum (inMB)' = $VM.MemoryMaximum/1MB
$Row.'RAM Minimum (in MB)' = $VM.MemoryMinimum/1MB
$Total=0; ($VM.VMId | Get-VHD | %{$Total += ($_.FileSize/1GB)})
$Row.Size = [math]::Round($Total)
$Results += $Row
}
$Results | Export-Csv c:\vm.csv -NoTypeInformation
This is definitely not the proper way to build an object list, instead you should do something like this:
Get-VM | Select Name,
#{Name = "CPUs"; Expression = {$_.ProcessorCount},
#{Name = "Dynamischer Arbeitsspeicher"; Expression = {$_.DynamicMemoryEnabled},
#{Name = "RAM Maximum (in MB)"; Expression = {$_.MemoryMaximum/1MB},
#{Name = "RAM Minimum (in MB)"; Expression = {$_.MemoryMinimum/1MB},
#{Name = "Size"; Expression = {$_.VMId | Get-VHD | %{$_.FileSize/1GB -join ","}} |
Export-Csv c:\vm.csv -NoTypeInformation

PowerShell - filtering for unique values

I have an input CSV file with a column containing information similar to the sample below:
805265
995874
805674
984654
332574
339852
I'd like to extract unique values into a array based on the leading two characters, so using the above sample my result would be:
80, 99, 98, 33
How might I achieve this using PowerShell?
Use Select-Object and parameter -unique:
$values =
'805265',
'995874',
'805674',
'984654',
'332574',
'339852'
$values |
Foreach-Object { $_.Substring(0,2) } |
Select-Object -unique
If conversion to int is needed, then just cast it to [int]:
$ints =
$values |
Foreach-Object { [int]$_.Substring(0,2) } |
Select-Object -unique
I'd use the Group-Object cmdlet (alias group) for this:
Import-Csv foo.csv | group {$_.ColumnName.Substring(0, 2)}
Count Name Group
----- ---- -----
2 80 {805265, 805674}
1 99 {995874}
1 98 {984654}
2 33 {332574, 339852}
You might use a hash table:
$values = #(805265, 995874, 805674, 984654, 332574, 339852)
$ht = #{}
$values | foreach {$ht[$_ -replace '^(..).+','$1']++}
$ht.keys
99
98
33
80
You could make a new array with items containing the first two characters and then use Select-Object to give you the unique items like this:
$newArray = #()
$csv = Import-Csv -Path C:\your.csv
$csv | % {
$newArray += $_.YourColumn.Substring(0, 2)
}
$newArray | Select-Object -Unique
Just another option instead of using Select-Object -unique would be to use the Get-Unique cmdlet (or its alias gu; see the detailed description here) as demonstrated below:
$values = #(805265, 995874, 805674, 984654, 332574, 339852)
$values | % { $_.ToString().Substring(0,2) } | Get-Unique
# Or the same using the alias
$values | % { $_.ToString().Substring(0,2) } | gu