PowerShell 3.0 and later
Sometimes you will stumble across tips like the following one:
$FilePath = "$env:SystemRoot\WindowsUpdate.log" $ContentsWithLinebreaks = (Get-Content $FilePath) -join "`r`n"
Can you guess the purpose? Get-Content by default returns a string array with individual lines, and the operator –join can convert an array to a string.
Beginning in PowerShell 3.0, there is a parameter for this: -Raw. It is much faster than the old approach and should produce the very same result:
$FilePath = "$env:SystemRoot\WindowsUpdate.log" $ContentsWithLinebreaks = (Get-Content $FilePath) -join "`r`n" $ContentsWithLinebreaks2 = Get-Content $FilePath -Raw $ContentsWithLinebreaks -eq $ContentsWithLinebreaks2
When you try the code, it turns out that $ContentWithLinebreaks and $ContentWithLinebreaks2 may not be equal, though. The only difference may be a trailing line break in $ContentsWithLinebreaks2:
PS> $ContentsWithLinebreaks -eq $ContentsWithLinebreaks2.TrimEnd("`r`n")
True
PS>
