Sorting Help for a Newbie to PowerShell

I’ve got a file with a long list of integers and I need to identify the largest integer. I tried

$max_delay = Get-Content caca1.txt | sort | select-object -last 1

I thought this put the largest integer at the bottom and I could assign it to a variable. (I’m used to sort -n in unix.) I created a test file with 1000 as the largest value, but got 829 (the next highest value) instead. When I looked at the sort it was something like…
1000
109
258
331
699
744
829
How can I identify the largest integer in the file?

You’ll need to cast or convert the individual lines which are strings into the data type integer to be able to sort by largest.

Example:

$max_delay = Get-Content caca1.txt | ForEach-Object { [System.Convert]::ToInt32($PSItem.Trim()) } | Sort-Object | Select-Object -Last 1
$max_delay = Get-Content caca1.txt | ForEach-Object { [System.Int32]$PSItem.Trim() } | Sort-Object | Select-Object -Last 1

In the future, please post general PowerShell questions like this in the “PowerShell Q&A” subforum instead of “Pester”.

The problem is that Get-Content is returning an array of strings rather than integers so sort works on a string sort rather than a numeric sort

These options should work

Get-Content .\num.txt | foreach {$psitem -as [int]} | sort | select -Last 1

Get-Content .\num.txt | foreach {[int]$psitem} | sort | select -Last 1

Get-Content .\num.txt | foreach ToInt32($_) | sort | select -Last 1

I’ve put your sample numbers into num.txt

The file I’m working with is a temporary file I created by pulling the numbers from a larger text file. Is there anyway I can create this temp file in the correct format to begin with?

Moved question to PowerShell Q&A.