PowerShell自定义函数的参数没有具体的命名规则，那么怎么做才能让参数的命名更加科学可持续。
我们应该怎么来命名函数的参数名称呢？有没有一个可供参考的列表？当然微软没有给出来。但是我们可以来理一个列表出来。微软自带了大量的cmdlet，这些cmdlet使用的参数有什么规律呢？我们用下面一段命令来统计一下。
Get-Command -CommandType Cmdlet |
ForEach-Object { $_.Parameters } |
ForEach-Object { $_.Keys } |
Group-Object -NoElement |
Sort-Object Count, Name -Descending |
Select-Object -Skip 11 |
Where-Object { $_.Count -gt 1 }
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这段代码的作用就是把所有的cmdlet使用的参数名称来做一个统计，看看哪些名称的参数用得比较多，然后按从多到少的顺序做一个列表。小编这边运行后的结果如下：
Count Name
----- ----
69 Force
56 InputObject
53 Credential
52 Path
48 PassThru
43 LiteralPath
35 UseTransaction
33 Exclude
32 Include
30 ComputerName
28 Filter
26 Id
14 Scope
14 Property
14 InstanceId
13 Value
13 Authentication
12 ThrottleLimit
12 Description
12 ArgumentList
10 Session
10 Encoding
9 SourceIdentifier
8 Wait
8 Namespace
8 DisplayName
8 CertificateThumbprint
8 AsJob
7 UseSSL
7 Stream
7 State
7 Port
7 NoClobber
7 Impersonation
7 FilePath
6 TypeName
6 Timeout
6 SessionOption
6 Option
6 Module
6 Message
6 LogName
6 Job
6 ConnectionUri
6 ConfigurationName
6 Command
6 Class
6 ApplicationName
6 AllowRedirection
5 View
5 Variable
5 Source
5 Recurse
5 PSProvider
5 Delimiter
4 UseDefaultCredentials
4 UseCulture
4 UICulture
4 StackName
4 ShowError
4 NewName
4 MessageData
4 Locale
4 GroupBy
4 Expand
4 EnableAllPrivileges
4 DisplayError
4 Destination
4 Depth
4 Culture
4 Count
4 Certificate
4 Category
4 CaseSensitive
4 Body
4 Authority
4 Append
4 Action
3 Width
3 Uri
3 SupportEvent
3 Server
3 SecurityDescriptorSddl
3 ScriptBlock
3 Restart
3 PSVersion
3 ProxyCredential
3 OutputBufferingMode
3 NoTypeInformation
3 NoServiceRestart
3 Newest
3 ModulesToImport
3 MemberType
3 MaxTriggerCount
3 MaximumRedirection
3 LocalCredential
3 List
3 Function
3 Forward
3 EnableNetworkAccess
3 CommandType
3 Cmdlet
3 Breakpoint
3 AsString
3 AssemblyName
3 As
2 WebSession
2 Visibility
2 Verb
2 UseSharedProcess
2 UserAgent
2 UnjoinDomainCredential
2 Unique
2 TypesToProcess
2 TypeData
2 Type
2 TransportOption
2 TransferEncoding
2 TotalCount
2 Title
2 TimeoutSec
2 ThreadOptions
2 ThreadApartmentState
2 SubscriptionId
2 Strict
2 Status
2 StartupType
2 StartupScript
2 SkipNetworkProfileCheck
2 Skip
2 ShowSecurityDescriptorUI
2 SessionVariable
2 SessionTypeOption
2 SessionType
2 SecondValue
2 Seconds
2 ScriptsToProcess
2 Script
2 RunAsCredential
2 RestorePoint
2 Resolve
2 Quiet
2 Query
2 PSSession
2 PSHost
2 ProxyUseDefaultCredent...
2 Proxy
2 ProcessorArchitecture
2 PrependPath
2 Prefix
2 PowerShellVersion
2 OutFile
2 Off
2 NotMatch
2 ModuleInfo
2 Minimum
2 Method
2 MemberName
2 MaximumReceivedObjectS...
2 MaximumReceivedDataSiz...
2 Maximum
2 LiteralName
2 ListenerOption
2 Line
2 JobName
2 InFile
2 Index
2 IdleTimeoutSec
2 Headers
2 Header
2 Guid
2 FormatTypeName
2 FormatsToProcess
2 First
2 Expression
2 EventIdentifier