PowerShell 中有一些運算子可讓您將命令包裝至下一行。 如果您想要將表達式分成多行,邏輯運算子-and和-or是很好的運算符。 PowerShell if($null-ne$user-and$user.Department-eq'Finance'-and$user.Title-match'Senior'-and$user.HomeDrive-notlike'\\server\*') {# Do Something} ...
$a=5, 6, 7, 8, 9 Write-Output "Test collection:" $a Write-Output "`nMembers greater than 7" $a -gt 7 Write-Output "`nMembers greater than or equal to 7" $a -ge 7 Write-Output "`nMembers smaller than 7" $a -lt 7 Write-Output "`nMembers smaller than or equal to 7" ...
$null Module manifests are loaded in RestrictedLanguage mode and may use these additional variables: $PSScriptRoot $PSEdition $EnabledExperimentalFeatures Any environment variable, like $env:TEMP Only the following comparison operators are permitted: -eq (equal) -gt (greater-than) -lt (less-than...
To define a default value for a parameter, type an equal sign and the value after the parameter name, as shown in the following variation of the Get-SmallFiles example: PowerShell Copy function Get-SmallFiles ($Size = 100) { Get-ChildItem $HOME | Where-Object { $_.Length -lt $Size ...
when the comparison is on the left, and converted to true when there are two $nulls in the array. This works all the way, when I continued this testing and had three $null objects in the array, again the array didn’t equal null. (It is the whole (!!true) issue all over again....
It returnsTrueif the variable is equal to$nullandFalseif the variable is not equal to$null. $str-eq$null Output: False We can use any of the methods above and easily determine whether a string variable is not null or empty in PowerShell....
Provide an argument that is not null or empty, and then try the command again. CannotConnect,PSSessionStateBroken Cant access a fileshare through a remote PS Session Cant make work with variable in Get-ADuser command to get UPN Cant return string for msExchMailboxGUID Cant use dfsutil in ...
# Create an empty Array for the disabledPlans Object $lo=@() for($i=1;$i -le $licenseOptions.Count;$i+=1) { # Make sure we only add non-null disabledPlans to the new Array if($licenseOptions[$i] -ne $null) { $lo+=$licenseOptions[$i] } ...
minutes." # -le for lesser or equal, -ge for greater or equal if ( ($BacklogSum -ge 0) -and ($BacklogSum -le $maxInputBacklog) -and ` # is not null and is under the threshold ($WatermarkAvg -ge 0) -and ($WatermarkAvg -le $maxWatermark) -and ` # is not null and is ...
The argument is null or empty. Provide an argument that is not null or empty, and then try the command again. CannotConnect,PSSessionStateBroken Cant access a fileshare through a remote PS Session Cant make work with variable in Get-ADuser command to get UPN Cant return string for msExch...