PowerShell: コマンドレットや型のエイリアスを表示する
PowerShellで使用できるエイリアス（別名）には大きく2種類あります。 「コマンドレットのエイリアス」と 「型のエイリアス（型エイリアス）」です。
【エイリアス 2種類】
- コマンドレットのエイリアス
- 型のエイリアス
エイリアスを知っておくとPowerShellスクリプトの記述が短く済んで便利です。 特に型名は長いのがあるのでエイリアスは重宝します。 例えば正規表現で使うクラスで 「System.Text.RegularExpressions.Regex」のエイリアスは「regex」です。 このような場合はエイリアスを使った方が賢明です。
ここでは2つのエイリアスを表示する方法を紹介します。 先に結論を紹介しておきます。
コマンドレットのエイリアス
Get-Alias
型のエイリアス
# 1行の場合
[PSObject].Assembly.GetType("System.Management.Automation.TypeAccelerators")::Get.GetEnumerator() | Sort-Object Key
# 2行に分ける場合
$s = "System.Management.Automation.TypeAccelerators"
[PSObject].Assembly.GetType($s)::Get.GetEnumerator() | Sort-Object Key
コマンドレットのエイリアス
PowerShellのコマンドレットのエイリアスを表示するには、 シンプルに「Get-Alias」コマンドレットを実行するだけです。 「Get-Alias」コマンドレットのエイリアスとして「alias」と 記述しても同じ結果を取得できます。
Get-Alias
実行例
PS D:\test\powershell> Get-Alias
CommandType Name
----------- ----
Alias ? -> Where-Object
Alias % -> ForEach-Object
Alias ac -> Add-Content
Alias cat -> Get-Content
Alias cd -> Set-Location
Alias chdir -> Set-Location
Alias clc -> Clear-Content
Alias clear -> Clear-Host
Alias clhy -> Clear-History
Alias cli -> Clear-Item
Alias clp -> Clear-ItemProperty
Alias cls -> Clear-Host
Alias clv -> Clear-Variable
Alias cnsn -> Connect-PSSession
Alias compare -> Compare-Object
Alias copy -> Copy-Item
Alias cp -> Copy-Item
Alias cpi -> Copy-Item
Alias cpp -> Copy-ItemProperty
Alias cvpa -> Convert-Path
Alias dbp -> Disable-PSBreakpoint
Alias del -> Remove-Item
Alias diff -> Compare-Object
Alias dir -> Get-ChildItem
Alias dnsn -> Disconnect-PSSession
Alias ebp -> Enable-PSBreakpoint
Alias echo -> Write-Output
Alias epal -> Export-Alias
Alias epcsv -> Export-Csv
Alias erase -> Remove-Item
Alias etsn -> Enter-PSSession
Alias exsn -> Exit-PSSession
Alias fc -> Format-Custom
Alias fhx -> Format-Hex
Alias fl -> Format-List
Alias foreach -> ForEach-Object
Alias ft -> Format-Table
Alias fw -> Format-Wide
Alias gal -> Get-Alias
Alias gbp -> Get-PSBreakpoint
Alias gc -> Get-Content
Alias gcb -> Get-Clipboard
Alias gci -> Get-ChildItem
Alias gcm -> Get-Command
Alias gcs -> Get-PSCallStack
Alias gdr -> Get-PSDrive
Alias gerr -> Get-Error
Alias ghy -> Get-History
Alias gi -> Get-Item
Alias gin -> Get-ComputerInfo
Alias gjb -> Get-Job
Alias gl -> Get-Location
Alias gm -> Get-Member
Alias gmo -> Get-Module
Alias gp -> Get-ItemProperty
Alias gps -> Get-Process
Alias gpv -> Get-ItemPropertyValue
Alias group -> Group-Object
Alias gsn -> Get-PSSession
Alias gsv -> Get-Service
Alias gtz -> Get-TimeZone
Alias gu -> Get-Unique
Alias gv -> Get-Variable
Alias h -> Get-History
Alias history -> Get-History
Alias icm -> Invoke-Command
Alias iex -> Invoke-Expression
Alias ihy -> Invoke-History
Alias ii -> Invoke-Item
Alias ipal -> Import-Alias
Alias ipcsv -> Import-Csv
Alias ipmo -> Import-Module
Alias irm -> Invoke-RestMethod
Alias iwr -> Invoke-WebRequest
Alias kill -> Stop-Process
Alias ls -> Get-ChildItem
Alias man -> help
Alias md -> mkdir
Alias measure -> Measure-Object
Alias mi -> Move-Item
Alias mount -> New-PSDrive
Alias move -> Move-Item
Alias mp -> Move-ItemProperty
Alias mv -> Move-Item
Alias nal -> New-Alias
Alias ndr -> New-PSDrive
Alias ni -> New-Item
Alias nmo -> New-Module
Alias nsn -> New-PSSession
Alias nv -> New-Variable
Alias ogv -> Out-GridView
Alias oh -> Out-Host
Alias popd -> Pop-Location
Alias ps -> Get-Process
Alias psedit -> Open-EditorFile
Alias pushd -> Push-Location
Alias pwd -> Get-Location
Alias r -> Invoke-History
Alias rbp -> Remove-PSBreakpoint
Alias rcjb -> Receive-Job
Alias rcsn -> Receive-PSSession
Alias rd -> Remove-Item
Alias rdr -> Remove-PSDrive
Alias ren -> Rename-Item
Alias ri -> Remove-Item
Alias rjb -> Remove-Job
Alias rm -> Remove-Item
Alias rmdir -> Remove-Item
Alias rmo -> Remove-Module
Alias rni -> Rename-Item
Alias rnp -> Rename-ItemProperty
Alias rp -> Remove-ItemProperty
Alias rsn -> Remove-PSSession
Alias rv -> Remove-Variable
Alias rvpa -> Resolve-Path
Alias sajb -> Start-Job
Alias sal -> Set-Alias
Alias saps -> Start-Process
Alias sasv -> Start-Service
Alias sbp -> Set-PSBreakpoint
Alias scb -> Set-Clipboard
Alias select -> Select-Object
Alias set -> Set-Variable
Alias shcm -> Show-Command
Alias si -> Set-Item
Alias sl -> Set-Location
Alias sleep -> Start-Sleep
Alias sls -> Select-String
Alias sort -> Sort-Object
Alias sp -> Set-ItemProperty
Alias spjb -> Stop-Job
Alias spps -> Stop-Process
Alias spsv -> Stop-Service
Alias start -> Start-Process
Alias stz -> Set-TimeZone
Alias sv -> Set-Variable
Alias tee -> Tee-Object
Alias type -> Get-Content
Alias where -> Where-Object
Alias wjb -> Wait-Job
Alias write -> Write-Output
型のエイリアス（型エイリアス）
型エイリアスを取得する場合、
専用のコマンドレットが無いので少し複雑になります。
下のコードは1行で記述する場合と、2行に分けて記述する場合の2通りを紹介しています。
どちらでもやりやすい方で実行してください。
# 1行の場合
[PSObject].Assembly.GetType("System.Management.Automation.TypeAccelerators")::Get.GetEnumerator() | Sort-Object Key
# 2行に分ける場合
$s = "System.Management.Automation.TypeAccelerators"
[PSObject].Assembly.GetType($s)::Get.GetEnumerator() | Sort-Object Key
実行例
PS D:\test\powershell> $s = "System.Management.Automation.TypeAccelerators" PS D:\test\powershell> [PSObject].Assembly.GetType($s)::Get.GetEnumerator() | Sort-Object Key Key Value --- ----- adsi System.DirectoryServices.DirectoryEntry adsisearcher System.DirectoryServices.DirectorySearcher Alias System.Management.Automation.AliasAttribute AllowEmptyCollection System.Management.Automation.AllowEmptyCollectionAttribute AllowEmptyString System.Management.Automation.AllowEmptyStringAttribute AllowNull System.Management.Automation.AllowNullAttribute ArgumentCompleter System.Management.Automation.ArgumentCompleterAttribute array System.Array bigint System.Numerics.BigInteger bool System.Boolean byte System.Byte char System.Char cimclass Microsoft.Management.Infrastructure.CimClass cimconverter Microsoft.Management.Infrastructure.CimConverter ciminstance Microsoft.Management.Infrastructure.CimInstance CimSession Microsoft.Management.Infrastructure.CimSession cimtype Microsoft.Management.Infrastructure.CimType CmdletBinding System.Management.Automation.CmdletBindingAttribute cultureinfo System.Globalization.CultureInfo datetime System.DateTime decimal System.Decimal double System.Double DscLocalConfigurationManager System.Management.Automation.DscLocalConfigurationManagerAttribute DscProperty System.Management.Automation.DscPropertyAttribute DscResource System.Management.Automation.DscResourceAttribute float System.Single guid System.Guid hashtable System.Collections.Hashtable initialsessionstate System.Management.Automation.Runspaces.InitialSessionState int System.Int32 int16 System.Int16 int32 System.Int32 int64 System.Int64 ipaddress System.Net.IPAddress IPEndpoint System.Net.IPEndPoint long System.Int64 mailaddress System.Net.Mail.MailAddress NullString System.Management.Automation.Language.NullString ObjectSecurity System.Security.AccessControl.ObjectSecurity OutputType System.Management.Automation.OutputTypeAttribute Parameter System.Management.Automation.ParameterAttribute PhysicalAddress System.Net.NetworkInformation.PhysicalAddress powershell System.Management.Automation.PowerShell psaliasproperty System.Management.Automation.PSAliasProperty pscredential System.Management.Automation.PSCredential pscustomobject System.Management.Automation.PSObject PSDefaultValue System.Management.Automation.PSDefaultValueAttribute pslistmodifier System.Management.Automation.PSListModifier psmoduleinfo System.Management.Automation.PSModuleInfo psnoteproperty System.Management.Automation.PSNoteProperty psobject System.Management.Automation.PSObject psprimitivedictionary System.Management.Automation.PSPrimitiveDictionary psscriptmethod System.Management.Automation.PSScriptMethod psscriptproperty System.Management.Automation.PSScriptProperty PSTypeNameAttribute System.Management.Automation.PSTypeNameAttribute psvariable System.Management.Automation.PSVariable psvariableproperty System.Management.Automation.PSVariableProperty ref System.Management.Automation.PSReference regex System.Text.RegularExpressions.Regex runspace System.Management.Automation.Runspaces.Runspace runspacefactory System.Management.Automation.Runspaces.RunspaceFactory sbyte System.SByte scriptblock System.Management.Automation.ScriptBlock securestring System.Security.SecureString single System.Single string System.String SupportsWildcards System.Management.Automation.SupportsWildcardsAttribute switch System.Management.Automation.SwitchParameter timespan System.TimeSpan type System.Type uint16 System.UInt16 uint32 System.UInt32 uint64 System.UInt64 uri System.Uri ValidateCount System.Management.Automation.ValidateCountAttribute ValidateDrive System.Management.Automation.ValidateDriveAttribute ValidateLength System.Management.Automation.ValidateLengthAttribute ValidateNotNull System.Management.Automation.ValidateNotNullAttribute ValidateNotNullOrEmpty System.Management.Automation.ValidateNotNullOrEmptyAttribute ValidatePattern System.Management.Automation.ValidatePatternAttribute ValidateRange System.Management.Automation.ValidateRangeAttribute ValidateScript System.Management.Automation.ValidateScriptAttribute ValidateSet System.Management.Automation.ValidateSetAttribute ValidateTrustedData System.Management.Automation.ValidateTrustedDataAttribute ValidateUserDrive System.Management.Automation.ValidateUserDriveAttribute version System.Version void System.Void WildcardPattern System.Management.Automation.WildcardPattern wmi System.Management.ManagementObject wmiclass System.Management.ManagementClass wmisearcher System.Management.ManagementObjectSearcher X500DistinguishedName System.Security.Cryptography.X509Certificates.X500DistinguishedName X509Certificate System.Security.Cryptography.X509Certificates.X509Certificate xml System.Xml.XmlDocument