Write Informations into existing csv - powershell

Question

My existing csv looks like this:
"Name","Surename","Workstation"
"Doe","John","PC1"
"Fonzarelli","Arthur","PC4"
"Tribbiani","Joey","PC77"
Now, I want to check whether the host is online or not and write a new column named "Status" with the result into my csv.
$file = Import-Csv "C:\Scripts\WS-Status.csv"
Foreach ($ws in $file) {
If (Test-Connection $ws.Workstation -Count 1 -Quiet) {
Write-Host $ws.Workstation "is online"
}
Else {Write-Host $ws.Workstation "is offline"}
}
It works fine in the console, but how the heck can I export the result into my csv?

Answer 1

You could use the Add-Member cmdlet to add a member (status) to your current entity:
$file = Import-Csv "C:\Scripts\WS-Status.csv"
Foreach ($ws in $file)
{
if (Test-Connection $ws.Workstation -Count 1 -Quiet)
{
Add-Member -InputObject $ws -NotePropertyName "Status" -NotePropertyValue "online"
}
else
{
Add-Member -InputObject $ws -NotePropertyName "Status" -NotePropertyValue "offline"
}
}
$file | Export-Csv "C:\Scripts\WS-Status.csv" -NoTypeInformation

Answer 2

You could create a PSCustomObject within yourForEach loop:
$file = Import-Csv "C:\Scripts\WS-Status.csv"
Foreach ($ws in $file) {
if(Test-Connection $ws.Workstation -Count 1 -Quiet){
Write-Host $ws.Workstation "is online"
$status = "Online"
}else{
Write-Host $ws.Workstation "is offline"
$status = "Offline"
}
[array]$result += [PSCustomObject] #{
Name = $ws.Name
Surename = $ws.Surename
Workstation = $ws.Workstation
Status = $status
}
}
$result | Export-Csv thing.csv -NoTypeInformation

Answer 3

You have to use Out-File cmdlet which enables you to send pipelined output directly to a text file.
$file = Import-Csv "C:\Scripts\WS-Status.csv"
Foreach ($ws in $file) {
If (Test-Connection $ws.Workstation -Count 1 -Quiet) {
$ws.Workstation + " is online" | Out-File -Append OutPutFile.csv
}
Else {
$ws.Workstation + ' is offline' | Out-File -Append OutPutFile.csv
}
}