Public/cli_help/Copy-HistoryCommand.ps1

Function Copy-HistoryCommand {
  [CmdletBinding(SupportsShouldProcess)]
  [alias("ch")]
  [outputtype("None", "System.String")]
  Param(
    [Parameter(Position = 0)]
    [ValidateNotNullOrEmpty()]
    [int[]]$ID = $(Get-History).Count,
    [switch]$Passthru)

  Begin {
    Write-Verbose "[BEGIN ] Starting: $($MyInvocation.Mycommand)"
  }

  Process {
    $idString = $id -join ','
    Write-Verbose "[PROCESS] Getting commandline from history item: $idstring"
    $cmdstring = (Get-History -Id $($id)).CommandLine
    If ($PSCmdlet.ShouldProcess("ID #$idstring")) {
      $cmdstring | Microsoft.PowerShell.Management\Set-Clipboard

      If ($Passthru) {
        #write the command to the pipeline
        $cmdstring
      } #If passthru
    }
  } #process

  End {
    Write-Verbose "[END ] Ending: $($MyInvocation.Mycommand)"
  } #end
} #close function


Register-ArgumentCompleter -CommandName Copy-HistoryCommand -ParameterName Id -ScriptBlock {
  param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameter)
  Get-History | Where-Object { $_.id -like "$wordtocomplete*" } |
    ForEach-Object {
      # completion text,listitem text,result type,Tooltip
      [System.Management.Automation.CompletionResult]::new($_.id, $_.id, 'ParameterValue', $_.commandline)
    }
}