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 ...
This still works correctly in an if statement. So a value is returned by your operator, then the whole statement is $true. PowerShell Copy $array = 1..6 if ( $array -gt 3 ) { # do something } There's one small trap hiding in the details here that I need to point out. Whe...
$a = "Powershell" IF ($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 $NULL) { "B is NULL" } ELSE { "B is NOT NULL" }...
filter [<scope:>]<name> {<statement list>} The following filter takes log entries from the pipeline and then displays either the whole entry or only the message portion of the entry: PowerShell filterGet-ErrorLog([switch]$Message) {if($Message) {Out-Host-InputObject$_.Message }else{$_...
It is equivalent to an else clause in an if statement. Only one default clause is permitted in each switch statement.switch has the following parameters:Wildcard - Indicates that the condition is a wildcard string. If the match clause is not a string, the parameter is ignored. The ...
This will return an object with the properties listed after the select statement - basic information about the physical machine we’re working with. If we’re interested in finding out about the disk drives on our server, this query will help: ...
To create this script, open a text editor or a script editor, type these commands, and then save them in a file namedServiceLog.ps1. Parameters in scripts To define parameters in a script, use a Param statement. TheParamstatement must be the first statement in a script, except for comme...
When the string "Optional" is matched in the Switch statement, a message is printed to the screen in order to explain that displaying optional properties might take a few seconds. Then, the FindClass method from the ActiveDirectorySchema class is called. The FindClass method returns an instance...
null coalescing operator removes the need forifandelsestatements if you want to get the value of a statement if it’s not $null or return something else if it is $null. Note that this doesn’t replace the check for a boolean value of true or false, it’s only checking if the ...
elseif ( $ParamSetName -eq “LiteralPath” ) { $PipelineInput = $false } The script uses the $ParamSetName and $PipelineInput variables later in the Process script block. The logic behind the definition of the $PipelineInput variable is thus: “If the Path parameter is not bound (that...