Set the type of your parameter to [switch], e.g. param ( [switch]$lastmonth ); EDIT: Note that the variable will be a boolean. You can test it like: if ($lastMonth) { Write-Host “lastMonth is set.” } else { Write-Host “lastMonth is not set.” } (thanks Chris)
Shortest Version I could came up with: if (!($value = Read-Host “Value [$default]”)) { $value = $default } This version doesn’t have to use else.
You can use WMI from within PowerShell to accomplish this. Assuming there is a network adapter who’s device name has Wireless in it, the series of commands might look something like the following: $adaptor = Get-WmiObject -Class Win32_NetworkAdapter | Where-Object {$_.Name -like “*Wireless*”} $adaptor.Disable() $adaptor.Enable() Remember, if you’re running this with Window’s Vista, you may … Read more
TryParse should work as long as you use ref and declare the variable first: $out = $null if ([bool]::TryParse($a, [ref]$out)) { # parsed to a boolean Write-Host “Value: $out” } else { Write-Host “Input is not boolean: $a” }
The Get-Content command returns each line from a text file as a separate string, so will give you an array (so long as you don’t use the -Raw parameter; which causes all lines to be combined to a single string). [string[]]$arrayFromFile = Get-Content -Path ‘C:\USER\Documents\Collections\collection.txt’ In his excellent answer, mklement0 gives a lot more detail … Read more
In fact, if you call a .ps1 file, by default any functions and variables declared within it are scoped privately within the script (this is referred to as “script scope”). Since you’re seeing both functions defined globally, I infer that you’re dot-sourcing SvcTest.ps1, i.e. invoking it like this PS> . <path>\SvcTest.ps1 rather than calling it … Read more
Have you tried: .\MyScript.ps1 2>&1 | tee -filePath c:\results.txt 2>&1 is what you’re looking for Note: This answer works great in PowerShell 1.0 and 2.0, but will capture ONLY standard output and errors in PowerShell 3.0 and later.
You can use Select-Object -Last 1 at the end of that pipeline.
The forfiles command works without resorting to PowerShell. The article is here: Find files based on modified time Microsoft Technet documentation: forfiles For the example above: forfiles /P <dir> /S /D +12/07/2013 /P The starting path to search /S Recurse into sub-directories /D Date to search, the “+” means “greater than” or “since”
$pos = $name.IndexOf(“;”) $leftPart = $name.Substring(0, $pos) $rightPart = $name.Substring($pos+1) Internally, PowerShell uses the String class.