$a = "Powershell" IF ($a -eq "PowerShell"){ "Statement is True"} ELSE { "Statement is False"}Now if you want to check for a NULL then it gets fun$b = “Hello” IF ($b -eq $NULL) { "B is NULL" } ELSE { "B is NOT
Everything you want to know about if/then/else Everything you want to know about switch Everything you want to know about exceptions Everything you want to know about $null Everything you want to know about ShouldProcess Visualize parameter binding Write-Progress while multithreading Add Credenti...
If you have not seen $PSItem before, just know that it's the same thing as $_. You can use either one because they both represent the current object in the pipeline.ForEach loopThe foreach loop works well with collections. Using the syntax: foreach ( <variable> in <collection> )...
The following filter takes log entries from the pipeline and then displays either the whole entry or only the message portion of the entry: PowerShell filterGet-EventMessage([switch]$MessageOnly) {if($MessageOnly) {Out-Host-InputObject$_.Message }else{$_} } ...
compare two strings in if-then-else statement Compare two text files in Powershell and if a name is found in both files output content from file 2 to a 3rd text file Compare-Object : Cannot bind argument to parameter 'ReferenceObject' because it is null. Comparing 2 software versions...
if ( Parameter1 != null ) { WriteObject(Parameter1 + ":" + InputObject); } else { WriteObject(InputObject); } } } 发表在PowerShell 2010年04月21日 Powershell Function Function 与 script的区别? Example: function MockCmdlet ($val) ...
Ternary operator? <if-true> : <if-false> You can use the ternary operator as a replacement for theif-elsestatement in simple conditional cases. For more information, seeabout_If. Null-coalescing operator?? The null-coalescing operator??returns the value of its left-hand operand if it isn'...
To detect and display errors of the second kind (fatal syntax errors) you need to inspect the property Pipeline.PipelineStateInfo.State inside your OnDataEnd event handler. If this value is set to PipelineState.Failed then the property Pipeline.PipelineStateInfo.Reason will contain an exception ...
In this example, when you type a single quote or double quote, there are two things that can happen. If the character following the cursor is not the quote typed, then a matched pair of quotes is inserted and the cursor is placed inside the the matched quotes. If the character following...
support lifecycle. While we continue to explore many options, we do plan on proceeding with aInstall-PowerShell7command that could be shipped as part of Windows. Please add your feedback to that RFC particularly if it’ll help you or your organization (for both Windows client and server SKUs...