Hostname Learning

PowerShell Help
1

Why when I query something like a csv or use get-content on a text file with a list of hostnames does the subsequent command choke on headers and such?

Example:
I wanted to run something like #invoke-command -computername (Get-content C:\somefile.txt) -scriptblock {get-process}

Instead I had to take the variable that I had make “somefile.txt” with and do the following top it

foreach($i in $pclist) {$tryme = $tryme + $i.Hostname}

Now #invoke-command -computername $tryme -scriptblock {get-process} is working fine

What’s up with that?

2

I’d say it depends pretty much on what’s in your C:\somefile.txt. When I try 

invoke-command -computername (Get-content C:\somefile.txt) -scriptblock {get-process}
it works just as expected.

3

Any chance you could share how the data in your textfile is formatted?
Like Olaf says it may have more to do with the data than the invoke command.

4

If you’re using Import-CSV to read a CSV, it’ll handle the headers for you.

If not, it’s easier to use something like…

Get-Content data.txt | Select -Skip 1

To skip the first line.

5

I have found that if I run something like

I typically work in an environments between 30-100 workstations per domain.

Get-ADComputer -filter * | Out-file C:\something.txt

I then need to strip out (or skip, forgot about that - thanks Don!) the top two lines or export it as a csv.

This certainly isn’t show stopped just an oddity I have noticed.

I’ll try to make a sample file and post it later!

Thank-you for taking the time to look at this, everybody!