Pipe output to the clipboard using PowerShell

问题:

In PowerShell, how do you pipe the output of a command to the clipboard but

• Still be able to pipe the data to more processes
• No dependencies on external applications like clip.exe
• for it to work as a filter, so we see output on the command line immediately

?

EDIT: 14 May 2015

After 3 years, I thought I would share my ClipboardModule (I hope I am allowed to):

Add-Type -AssemblyName System.Windows.Forms

Function Get-Clipboard {
    param([switch]$SplitLines)

    $text = [Windows.Forms.Clipboard]::GetText();

    if ($SplitLines) {
        $xs = $text -split [Environment]::NewLine
        if ($xs.Length -gt 1 -and -not($xs[-1])) {
            $xs[0..($xs.Length - 2)]
        } else {
            $xs
        }
    } else {
        $text
    }
}

function Set-Clipboard {
    $in = @($input)

    $out = 
        if ($in.Length -eq 1 -and $in[0] -is [string]) { $in[0] }
        else { $in | Out-String }

    if ($out) {
        [Windows.Forms.Clipboard]::SetText($out);
    } else {
        # input is nothing, therefore clear the clipboard
        [Windows.Forms.Clipboard]::Clear();
    }
}


function GetSet-Clipboard {
    param([switch]$SplitLines, [Parameter(ValueFromPipeLine=$true)]$ObjectSet)

    if ($input) {
        $ObjectSet = $input;
    }

    if ($ObjectSet) {
        $ObjectSet | Set-Clipboard
    } else {
        Get-Clipboard -SplitLines:$SplitLines
    }
}

Set-Alias cb GetSet-Clipboard

Export-ModuleMember -Function *-* -Alias *

I usually use the cb alias (for GetSet-Clipboard) because it is two way i.e can get or set the clipboard:

cb                # gets the contents of the clipboard
"john" | cb       # sets the clipboard to "john"
cb -s             # gets the clipboard and splits it into lines

回答1:

If you have WMF 5.0, PowerShell contains two new cmdlets:

get-clipboard and set-clipboard

回答2:

EDIT: Please look at question instead for solution.

Here is my solution:

Add-Type -AssemblyName 'System.Windows.Forms'

filter Set-Clipboard {
    begin {
        $cp = @()
    }
    process {
        $_ | Tee-Object -Variable 'cp0'
        $cp = $cp + @($cp0);
    }
    end {
        $str = ($cp | Out-String).ToString();

        [Windows.Forms.Clipboard]::Clear();

        if ( ($str -ne $null) -and ($str -ne '') ) {
            [Windows.Forms.Clipboard]::SetText( $str )
        }

        $cp = @()
    }
}

This collects all the objects in an array, $cp. We use Tee-Object to redirect the current element, $_, to both the next process and to store it in the array, $cp. Lastly, once the process is finished we set the clipboard's text.

I have used it in the following way:

dir -Recurse | Set-Clipboard | Select 'Name'

And it seems to work.

To use a function instead:

function Set-Clipboard-Func {
    $str = $input | Out-String

    [Windows.Forms.Clipboard]::Clear();

    if ( ($str -ne $null) -and ($str -ne '') ) {
        [Windows.Forms.Clipboard]::SetText( $str )
    }
}

回答3:

Powershell version 6.1 removed this commandlet, so it is no longer built-in.

Instead, you need to install the ClipboardText package. In Powershell's console type:

Install-Module -Name ClipboardText

Then you can use:

 Set-ClipboardText "hello clipboard"
 Get-ClipboardText

Here is the github issue with the maintainers of Powershell redirecting you to use the ClipboardText package.