powershell - 通过 Invoke-Command : "... not recognized as the name..." 调用远程 cmdlet (ffmpeg)

Question

我正在尝试通过 Powershell 在远程转码服务器上调用 ffmpeg:

$session = new-pssession -computername transcodingserver
Invoke-Command -session $session -scriptblock { powershell ffmpeg }

ffmpeg正确安装在远程服务器上，可以在那里运行，但是远程调用会报错:

ffmpeg : The term 'ffmpeg' is not recognized as the name of a cmdlet, function, script file, or operable program.
    + CategoryInfo          : NotSpecified: (ffmpeg : The te...rable program. :String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
    + PSComputerName        : transcodingserver

Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ ffmpeg
+ ~~~~~~
    + CategoryInfo          : ObjectNotFound: (ffmpeg:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException
NotSpecified: (:) [], RemoteException

在我看来，如果机器，我运行 Invoke-Command on，尝试运行 ffmpeg，它没有安装在那里。您需要做什么才能在远程服务器上运行 ffmpeg？

Answer 1

你不需要powershell里面 -scriptblock {..}因为Invoke-Command本身就是一个 powershell session (尽管是临时的)。找到 ffmpeg 的完整路径可执行并运行以下命令

$session = new-pssession -computername transcodingserver
Invoke-Command -session $session -scriptblock { & "C:\Program Files\ffmpeg\bin\ffmpeg.exe"}

或者你可以直接执行命令，不用 new-pssession

Invoke-Command -ComputerName transcodingserver -scriptblock { 
    & "C:\Program Files\ffmpeg\bin\ffmpeg.exe"}