Powershell的内置变量

ls Variable:

 

 

Name	Value	Description
$
?	TRUE	Status of last command
^
args	System.Object[]
ConfirmPreference	High	Dictates when confirmation should be requested. Confirmation is requested when the ConfirmImpact of the operation is equal to or greater than $ConfirmPreference. If $ConfirmPreference is None, actions will only be confirmed when Confirm is specified.
ConsoleFileName		Name of the current console file
DebugPreference	SilentlyContinue	Dictates the action taken when a Debug message is delivered
Error	System.Collections.ArrayList
ErrorActionPreference	Continue	Dictates the action taken when an error message is delivered
ErrorView	NormalView	Dictates the view mode to use when displaying errors
ExecutionContext	System.Management.Automation.EngineIntrinsics	The run objects available to cmdlets
FALSE	FALSE	Boolean False
FormatEnumerationLimit	4	Dictates the limit of enumeration on formatting IEnumerable objects
HOME	C:\Users\814072	Folder containing the current user's profile
Host	System.Management.Automation.Internal.Host.InternalHost	A reference to the host of the current runspace
input	System.Collections.ArrayList+ArrayListEnumeratorSimple
MaximumAliasCount	4096	Maximum number of aliases allowed in a session
MaximumDriveCount	4096	Maximum number of drives allowed in a session
MaximumErrorCount	256	Maximum number of errors to retain in a session
MaximumFunctionCount	4096	Maximum number of functions allowed in a session
MaximumHistoryCount	4096	Maximum number of history objects to retain in a session
MaximumVariableCount	4096	Maximum number of variables allowed in a session
MyInvocation	System.Management.Automation.InvocationInfo
NestedPromptLevel	0	Dictates what type of prompt should be displayed for the current nesting level
null		References to the null variable always return the null value. Assignments have no effect.
OutputEncoding	System.Text.DBCSCodePageEncoding	The text encoding used when piping text to a native executable file
PID	4800	Current process ID
profile	C:\Users\814072\Documents\WindowsPowerShell\Microsoft.PowerShellISE_profile.ps1
ProgressPreference	Continue	Dictates the action taken when progress records are delivered
PSBoundParameters	System.Management.Automation.PSBoundParametersDictionary
PSCommandPath
PSCulture	zh-CN	Culture of the current Windows PowerShell session
PSDefaultParameterValues	System.Management.Automation.DefaultParameterDictionary	Variable to hold all default <cmdlet:parameter, value> pairs
PSEmailServer		Variable to contain the name of the email server. This can be used instead of the HostName parameter in the Send-MailMessage cmdlet.
PSHOME	C:\Windows\System32\WindowsPowerShell\v1.0	Parent folder of the host application of the current runspace
psISE	Microsoft.PowerShell.Host.ISE.ObjectModelRoot
PSScriptRoot
PSSessionApplicationName	wsman	AppName where the remote connection will be established
PSSessionConfigurationName	http://schemas.microsoft.com/powershell/Microsoft.PowerShell	Name of the session configuration which will be loaded on the remote computer
PSSessionOption	System.Management.Automation.Remoting.PSSessionOption	Default session options for new remote sessions
PSUICulture	en-US	UI culture of the current Windows PowerShell session
psUnsupportedConsoleApplications	Microsoft.PowerShell.Host.ISE.UICollection`1[System.String]
PSVersionTable	System.Management.Automation.PSVersionHashTable	Version information for current Windows PowerShell session
PWD	C:\Users\814072
scriptAnalyzer	Microsoft.PowerShell.Host.ISE.ISEAddOnTool
scriptBrowser	Microsoft.PowerShell.Host.ISE.ISEAddOnTool
ShellId	Microsoft.PowerShell	The ShellID identifies the current shell.  This is used by #Requires.
StackTrace	at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) at System.Management.Automation.PathUtils.MasterStreamOpen(PSCmdlet cmdlet, String filePath, Encoding resolvedEncoding, Boolean defaultEncoding, Boolean Append, Boolean Force, Boolean NoClobber, FileStream& fileStream, StreamWriter& streamWriter, FileInfo& readOnlyFileInfo, Boolean isLiteralPath)
TRUE	TRUE	Boolean True
VerbosePreference	SilentlyContinue	Dictates the action taken when a Verbose message is delivered
WarningPreference	Continue	Dictates the action taken when a Warning message is delivered
WhatIfPreference	FALSE	If true, WhatIf is considered to be enabled for all commands.