在PowerShell 中使用filter函数 filter是在管道中的每个对象上运行的函数。它的所有语句都包含在filter函数的进程块中。 通常,函数使用Begin或End参数,但filter函数只有进程块。 语法: filter[<scope:>]<name> {<statement list>} filter函数的主要目的是处理来自管道的输入。它有助于更快、更有效地处理管道...
filter [<scope:>]<name> {<statement list>} 下列篩選會從管線擷取記錄專案,然後顯示整個專案或只顯示項目的訊息部分: PowerShell 複製 filter Get-ErrorLog ([switch]$Message) { if ($Message) { Out-Host -InputObject $_.Message } else { $_ } } 其用法如下: PowerShell 複製 Get-WinEvent...
The comparison operators in PowerShell can either compare two values or filter elements of a collection against an input value. Long description Comparison operators let you compare values or finding values that match specified patterns. PowerShell includes the following comparison operators: Equalit...
functionGet-CmdletAlias($cmdletname) {Get-Alias|Where-Object-FilterScript{$_.Definition-like"$cmdletname"} |Format-Table-PropertyDefinition, Name-AutoSize} Customize your console PowerShell functionCustomizeConsole {$hosttime= (Get-ChildItem-Path$PSHOME\pwsh.exe).CreationTime$hostversion="$($Host....
If the script has no exit statement, the exit code is always 0 when the script completes without error or 1 when the script terminates from an unhandled exception.filterSpecifies a function in which the statement list runs one time for each input object. It has the same effect as a ...
Dynamic Where-Object Filter Dynamically create folders for move-item content Dynamically populate powershell switch statement E-mail notification when VM is shutdown and when is back up and running Easy way to download updates from Update Catalog using Powershell Easy way to find if a custom AD ...
A filtering function—that is, a function designed to work within the pipeline to filter objects—can have any combination of these three script blocks, depending on what you want to do. They work as follows:The BEGIN block executes once when your function is first called. You can use this...
Both $filter1 and $filter2 end up containing exactly the same thing, but $filter2 gets there by using the variable-replacement trick of double quotes. Note that only the outermost set of quotes actually matters. The single quotes within the string don’t matter to Windows PowerShell. Those...
Use logical operators (-and,-or,-xor,-not,!) to connect conditional statements into a single complex conditional. For example, you can use a logical-andoperator to create an object filter with two different conditions. For more information, seeabout_Logical_Operators. ...
Filter completion for enum parameter against ValidateRange attributes (#17750) (Thanks @fflaten!) Small cleanup Invoke-RestMethod (#19490) (Thanks @CarloToso!) Fix wildcard globbing in root of device paths (#19442) (Thanks @MartinGC94!) Add specific error message that creating Junctions requires...