$Env:<variable-name> ="<new-value>" 例如,若要建立Foo環境變數: PowerShell $Env:Foo='An example' 因為環境變數一律是字串,所以您可以使用它們,就像包含字元串的任何其他變數一樣。 例如: PowerShell "The 'Foo' environment variable is set to:$Env:Foo"$Env:Foo+='!'$Env:Foo ...
(parent) `$funcAVar1 = '$(Get-Variable funcAVar1 -Scope 3 -ValueOnly)'""Scope [4] (parent) `$funcAVar1 = '$(Get-Variable funcAVar1 -Scope 4 -ValueOnly)'"} funcA# End of ScopeExample.ps1PS> .\ScopeExample.ps1 输出显示每个作用域中变量的值。 可以看到,专用变量仅在funcB可见,...
Every time you use the-matchoperator and it returns a true condition, then PowerShell also creates the$Matchesvariable. In the example, if you enter the$Matchesvariable, then PowerShell will display the phone number it matched. PowerShell automatically makes a $Matches variable if the regu...
Also, by default Powershell already includes the Boolean variables $True and $False to represent True and False. You can use them in any session or script. Evan7191(Evan7191)July 17, 2017, 1:09pm9 Example: If (condition is true) { return $True } If (negative condition is true) { r...
(int obj), bool IEq... GetHashCode Method int GetHashCode() GetType Method type GetType() GetTypeCode Method System.TypeCode GetTypeCode(), System.TypeCode IConvertible.Ge... ToBoolean Method bool IConvertible.ToBoolean(System.IFormatProvider provider) ToByte Method byte IConvertible.ToByte(...
AddCommand(String, Boolean) Add a cmdlet to construct a command pipeline. For example, to construct a command string "get-process | sort-object", Copy PowerShell shell = PowerShell.Create("get-process").AddCommand("sort-object"); AddCommand(String) Add a cmdlet to construct a comman...
Here is your last example. If a variable is defined, we use its value to determine TRUE/FALSE but if the variable is not defined – it is FALSE. PS> $x=10 PS> test $x TRUE PS> $x=0 PS> test $x FALSE PS> test $NoSuchVariable ...
escaping single quotes inside a variable Escaping special characters in passwords Event Log Search for Time / Source from Event Viewer Event Procedures for Right-Click popup menu Event-Handling on Powershell-GUI (System.Windows.Forms) Example of a function that will remove everything from my string...
A slightly unusual quirk of Windows PowerShell is its use of Boolean comparison operators, such as -ge ("greater than or equal to") and -eq ("equal to"), rather than lexical tokens, such as ">=" and "==". Now I use the custom get-textBox cmdlet to fetch the contents of the ...
Access to Exchange Online PowerShell is also required for other features (for example, the ability to open the Exchange admin center (EAC)). Expand table Type: Boolean Position: Named Default value: None Required: False Accept pipeline input: False Accept wildcard characters: False Applies to...