Check Creation Date on File and Send Email if it Doesn't Match Current Date Check for empty XML element Check for file exists and not zero byte otherwise bypass step execution and log messages Check for files older than 2 minutes and sends out notification if the file still exists check for...
These expressions can be combined with each other with the-andand-oroperators, but you may have to use parenthesis to break them into subexpressions. PowerShell if( (Get-Process)-and(Get-Service) ) Checking for $null Having a no result or a$nullvalue evaluates to$falsein theifstatement. ...
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。
However, if I only want to check and run code for invalid integers (doing nothing for valid ones), the following IF statement returns nothing regardless of the $value’s value: PS>$value = "abc" PS>if(isInt($value) -eq $false){ write-output "Invalid" } PS> Yet just running the ...
If-Else/Do-While/Switch/For/While都和普通编程语言无异 ForEach Foreach($<item> in $<collection>) { Statement-1 Statement-2 Statement-N } 函数 常规函数 function[<scope:>]<name>[([type]$parameter1[,[type]$parameter2])]{param([type]$parameter1[,[type]$parameter2])dynamicparam{<stateme...
<statement> {-and | -or | -xor} <statement> {! | -not} <statement> 使用逻辑运算符的语句返回布尔值(TRUE 或 FALSE)。 PowerShell 逻辑运算符只计算确定语句的事实值所需的语句。 如果包含 and 运算符的语句中的左操作数为 FALSE,则不会计算右操作数。 如果包含 or 语句的语句中的左操作数为 TRUE...
If / elseif /else functionality PowerShell In the above examples, we have seen that if and else conditions are not satisfied if we have multiple if conditions, so it checks every If condition and when they are not true then else statement is executed. Here, to meet execution time criteria...
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 aparamstatement. Theparamstatement must be the first statement in a script, except for comments...
Provides access to different result buffers like output, error, debug, verbose, progress, warning, and information. Provides a simple interface to execute a powershell command: Copy Powershell.Create().AddScript("get-process").Invoke(); The above statement creates a local runspace using ...
If you have a tip you’d like us to share or a question about how to do something, let us know. Find more tips in the Windows PowerShell Tip of the Week archive. More Fun with Dates (and Times) What’s that? Do we know anything about the Windows PowerShell cmdlet Get-Date?