运行if语句时,PowerShell 会将<test1>条件表达式计算为 true 或 false。 如果<test1>为 true,<statement list 1>则运行,PowerShell 退出 语句if。 如果<test1>为 false,则 PowerShell 将计算条件语句指定的<test2>条件。 有关布尔计算的详细信息,请参阅about_Booleans。
filter [<scope:>]<name> {<statement list>} 下列篩選會從管線取得記錄專案,然後顯示整個專案或只顯示專案的訊息部分: PowerShell 複製 filter Get-ErrorLog ([switch]$Message) { if ($Message) { Out-Host -InputObject $_.Message } else { $_ } } 可用方式如下: PowerShell 複製 Get-WinEven...
statement-terminators: statement-terminator statement-terminators statement-terminator if-statement: if new-lines~opt~ ( new-lines~opt~ pipeline new-lines~opt~ ) statement-block elseif-clauses~opt~ else-clause~opt~ elseif-clauses: elseif-clause elseif-clauses elseif-clause elseif-clause: new-...
If Mandatory is not specified or if it is defined as Mandatory=$false, the value is not guaranteed to be set when DSC calls the resource. This is appropriate for optional properties. #> [DscProperty(Mandatory)] [ensure] $ensure <# This property is optional. When provided, the content of...
This will return an object with the properties listed after the select statement - basic information about the physical machine we’re working with. If we’re interested in finding out about the disk drives on our server, this query will help: ...
If this function is run using the pipeline, it displays the following results: PowerShell 1,2,4|Get-PipelineBeginEnd Output Begin: The input is End: The input is 1 2 4 When thebeginstatement runs, the function doesn't have the input from the pipeline. Theendstatement runs after the func...
Here’s how PowerShell responds (note that, with –like, you get back the actual values rather than a Boolean True or False):Copy blue black Very nice. If you’d like to create a new array ($arrSubset) containing those values, well, that only requires one line of code as well:...
not a regular expression.Figure 1shows some of the output, which could also be piped to a file. It is important to note that the output includes both the file name and line number that the match was found in, which can be very useful if you want to go back at some point and dig ...
PowerShell_Examples_v4.pdf- This two-page reference describes how to perform popular IT management and scripting tasks by using Windows PowerShell 4.0, including how to fetch data by using Management OData IIS Services, how to schedule jobs, how to add a #Requires statement to a script, and...
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System....