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 ($a...
Windows PowerShell reserves a few parameter names, referred to as Common parameters, which you can't use: WhatIf, Confirm, Verbose, Debug, ErrorAction, ErrorVariable, OutVariable, and OutBuffer. In addition, the following aliases for these parameter names are reserved: vb, db, ea, ev, ov...
\Program Files\PowerShell\7\pwsh.exe Target : LinkType : Length : 293312 DirectoryName : C:\Program Files\PowerShell\7 Directory : C:\Program Files\PowerShell\7 IsReadOnly : False FullName : C:\Program Files\PowerShell\7\pwsh.exe Extension : .exe Name : pwsh.exe Exists : True ...
借助PowerShell,可通过将赋值括在括号 () 内,在表达式中使用赋值。 PowerShell 会传递分配的值。 例如:PowerShell 复制 # In an `if` conditional if ($foo = Get-Item $PROFILE) { "$foo exists" } # Property access ($profileFile = Get-Item $PROFILE).LastWriteTime # You can even *assign* ...
For example, theUtilityFunctions.ps1script creates theNew-Profilefunction and the$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...
$test$Global:test TheUsing:scope modifier Using is a special scope modifier that identifies a local variable in a remote command. Without a modifier, PowerShell expects variables in remote commands to be defined in the remote session. TheUsing:scope modifier was introduced in PowerShell 3.0. ...
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: ...
Actually using this regex in Windows PowerShell is pretty easy. Assuming the variable $email contains the e-mail address you read from the CSV file, something like this will check to see whether it's valid or not:Copy $regex = "^[a-z]+\.[a-z]+@contoso.com$" If ($email –not...
## Ensure the base path exists $basePath = “HKLM:\Software\Policies\Microsoft\Windows\PowerShell\Transcription” if(-not (Test-Path $basePath)) { $null = New-Item $basePath -Force }## Enable transcription Set-ItemProperty $basePath -Name EnableTranscripting -Value 1...