问Powershell foreach和if语句EN今天我们来讲解一下 for跟foreach 一、for 是一个循环语句 for break...
括号内的 语句部分foreach表示要循环访问的变量和集合。 PowerShell 在循环运行时自动foreach创建变量$<item>。 每次迭代开始时,foreach将项变量设置为集合中的下一个值。 块{<statement list>}包含要针对每个迭代执行的命令。 示例 例如,foreach以下示例中的 循环显示 数组中的$letterArray值。
The following workflow contains aforeach -Parallelstatement that processes the disks that theGet-Diskactivity gets. The commands in theforeach -Parallelscript block run sequentially, but they run on the disks in parallel. The disks might be processed concurrently and in any order. ...
$_:常与Foreach-Object配套使用,代表传入当前循环的token 别名为$PSItem(token中包含当前对象) Foreach-Object也可以用%代替,例如1,2,3 | %{ write-host $_ } 系统缺省变量 $args:参数 $foreach:循环计数器,用于快速确定foreach的循环次数 $MyInvocation.MyCommand.Path:当前脚本的执行位置(包括文件名) $My...
Compare timestamps for two files Compare two azure ad groups Compare two mailbox users directly in compare-object scriptblock compare two strings in if-then-else statement Compare two text files in Powershell and if a name is found in both files output content from file 2 to a 3rd text ...
要将整个语句(如if)的输出作为命令参数传递,请将它们括在子表达式操作符$(...)中。 一个简单的例子: # Note the use of $(...) around the `if` statement.PS> $var = 0; Write-Host $(if ($var -eq 0) { 'zero' } else { 'nonzero' })zero 请注意,如果只需要表达式或命令的输出,则使用...
Summary: Microsoft Scripting Guy, Ed Wilson, talks about using the Windows PowerShellForeachstatement to loop through a collection. Microsoft Scripting Guy, Ed Wilson, is here. When the Scripting Wife and I were in Amsterdam, Windows PowerShell MVP, Jeff Wouters, told me that a lot of people...
Class SoundNames : System.Management.Automation.IValidateSetValuesGenerator { [string[]] GetValidValues() { $SoundPaths = '/System/Library/Sounds/', '/Library/Sounds','~/Library/Sounds' $SoundNames = ForEach ($SoundPath in $SoundPaths) { If (Test-Path $SoundPath) { (Get-Ch...
In pull mode, the IT department creates a pull server with the configuration details of each node using a Managed Object Format file. Each node contacts the pull server to check for a new configuration. If the new configuration is available, the pull server sends the configuration to the node...
Beginning in PowerShell 7.2, when the left-hand operand in a -replace operator statement isn't a string, that operand is converted to a string. PowerShell does a culture-insensitive string conversion. For example, if your culture is set to French (fr), the culture-sensitive string con...