如果<condition>表达式为 true,则执行<if-true>表达式 如果<condition>表达式为 false,则执行<if-false>表达式 例如: PowerShell $message= (Test-Path$path) ?"Path exists":"Path not found" 在此示例中,当 返回 时,$message的值为Path exists。Test-Path$true$false返回 时Test-Path,的$messagePath not ...
IgnoreCase : True LineNumber : 1 Line : 64 Path : Variable:\MaximumHistoryCount Pattern : [0-9] 使用脚本块搜索字符串“Pos”的文件SelectStrCommandSample.cs。 -cmatch 运算符执行不区分大小写的模式匹配。 PowerShell 复制 Select-Str -Path "SelectStrCommandSample.cs" -Script { if ($a...
如果不想继续使用自定义的变量,可以使用del variable:变量名的方法删除变量,注意此处无$符号 $a=0$a-eq$nullFalsedelvariable:a$a-eq$nullTrue PowerShell支持的变量类型和C#大体相同(没有了short、uint、ulong等),大多都继承自System.ValueType类( .NET类),其基本数据类型包括 整型 其实int、long、以及下面的f...
\Program Files\PowerShell\7\pwsh.exe Target : LinkType : Length : 293312 DirectoryName : C:\Program Files\PowerShell\7 Directory : C:\Program Files\PowerShell\7 IsReadOnly : False FullName : C:\Program Files\PowerShell\7\pwsh.exe Extension : .exe Name : pwsh.exe Exists : True ...
借助PowerShell,可通过将赋值括在括号 () 内,在表达式中使用赋值。 PowerShell 会传递分配的值。 例如:PowerShell 复制 # In an `if` conditional if ($foo = Get-Item $PROFILE) { "$foo exists" } # Property access ($profileFile = Get-Item $PROFILE).LastWriteTime # You can even *assign* ...
A function exists in the scope in which you create it. If a function is part of a script, the function is available to statements within that script. By default, a function in a script isn't available outside of that script. You can specify the scope of a function. For example, the...
Test-Path $profile If the profile exists this command will return True; if it doesn’t exist, the command will return False. If this command returns False, you need to create the profile. Creating a profile in Windows XP is really easy. Simply type this at the command prompt: ...
For example, theUtilityFunctions.ps1script creates theNew-Profilefunction and the$ProfileNamevariable. PowerShell #In UtilityFunctions.ps1functionNew-Profile{Write-Host"Running New-Profile function"$profileName=Split-Path$PROFILE-Leafif(Test-Path$PROFILE) {Write-Error"Profile$profileNamealready exists on...
In the above example, if you didn't know the exact name of the service application, you could rewrite the first statement to get the service application based on a search of the partial name. For example: Copy $app=get-sprsserviceapplication | where {$_.name -like " ssrs_testapp *"...
Test-Path C:\Scripts\Archive Test-Path will return True if the folder exists and False if the folderdoesn’texist. See? Test-Path might be obscure, but it’s far from useless. But wait: there’s more. It’s nice that Test-Path works with file system paths, but it can work with ...