In this article learn how to use if then logic in PowerShell scripts with several examples of using if, if/else and switch statements.
compare two strings in if-then-else statement Compare two text files in Powershell and if a name is found in both files output content from file 2 to a 3rd text file Compare-Object : Cannot bind argument to parameter 'ReferenceObject' because it is null. Comparing 2 software versions to ...
$message = 'My Name is Kevin and my SSN is 123-45-6789.' if($message -match 'My Name is (?<Name>.+) and my SSN is (?<SSN>.+)\.') { $Matches.Name $Matches.SSN } In the example above, the (?<Name>.*) is a named sub expression. This value is then placed in the...
Explanation:In this example, first it checks the If Service exists, and if service it exists then it enters the block and again checks if service is Running or Stopped and executes their block accordingly. This is the perfect example of an explanation of nestedIfloop. If /else functionality ...
# Changes the color of the commands in the Console pane to red and then restores it to its default value.$psISE.Options.ConsoleTokenColors["Command"] ='red'$psISE.Options.RestoreDefaultConsoleTokenColors() RestoreDefaults() Windows PowerShell ISE 2.0 和更新版本支援。
For example: PowerShell Copy function Get-SumOfNumbers { param ( [int[]]$Numbers ) begin { $retValue = 0 } process { if ($null -ne $Numbers) { foreach ($n in $Numbers) { $retValue += $n } } else { $retValue += $_ } } end { $retValue } } PS> 1, 2, 3, 4 | ...
Because PowerShell runs most commands in memory (like Python or Ruby), you can't usesudodirectly with PowerShell built-ins. You can runpwshfromsudo. If it's necessary to run a PowerShell cmdlet from within PowerShell withsudo, for example,sudo Set-Date 8/18/2016, then you would usesud...
I can then use a if statement/block to test: $value = 4 if(isInt($value) -eq $true){ write-output "Valid" }else{ write-output "Invalid" } This correctly outputs “Valid”. If I change $value to a non-integer, it correctly outputs “Invalid” when I run the above code. ...
If all we care about is a single one of these properties – for example, just the day – we could even do this in a single line of code: Copy $a = (Get-Date).Day Nothing too fancy here: we simply call the Get-Date cmdlet, enclosing the cmdlet in parentheses to ensure that ...
When PowerShell remoting is unavailable, for example if you don’t have privileges to use it or it is not enabled. When a particular .NET type is needed from output, for example to run methods on, or as input to another command. Commands run over PowerShell remoting emit deserialized outp...