PowerShell Write-Host append to a text file

Question

Im new in PowerShell and working on a script more than 500 lines. I use the write-host command often. And now Im working on doing the Logging part. Also, sorry for the bad English.

I want the script to save every write-host command in a .txt, append and still let the write-host command output passthrough to the Shell output.

Things I tried:

&{
# the script 
} *>> $logPath

Start-Transcript -Path $logPath
# the script 
Stop-Transcript

It works but its not letting the output passthrough.

I am not able to reproduce your issue. If I replace # the script with Write-Host 'Hello World', it writes Hello World to the display. With PowerShell version and IDE are you using? — iRon
– iRon, Commented May 4, 2021 at 7:43
The Tee-Object cmdlet is designed for this. It passes output both to the console and to a file. — JonC
– JonC, Commented May 4, 2021 at 9:01

Vivek Kumar Singh · Accepted Answer · 2021-05-04 07:42:45Z

1

One way of doing that would be to be to use Out-File cmdlet by wrapping your whole script like this:-

@(
Write-Output "######### Loop 1 #########"
foreach ($i in (1..5))
{
    Write-Output $i "--> Loop1"
}

Write-Output "######### Loop 2 #########"
foreach ($i in (6..11))
{
    Write-Output $i "--> Loop2"
}

Write-Output "######### Loop 3 #########"
foreach ($i in (12..15))
{
    Write-Output $i "--> Loop3"
}
) | Out-file $env:USERPROFILE\Desktop\Output.txt -width 50

Use Write-Output instead of Write-Host as Write-Host writes to the console itself where as Write-Output sends the output to the pipeline. See here for details.

answered May 4, 2021 at 7:42

Vivek Kumar Singh

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