how to edit a file in powershell remoting session

问题:

I am connecting to another computer using powershell remoting, really nice. can do lots, but how do I edit a file?

PS C:\Users\guutlee> Enter-PSSession -ComputerName appprod

[appprod]: PS C:\Users\guutlee\Documents> cd \myapp

[appprod]: PS C:\myapp>

what can I do to open a file editor on a file on the remote machine?

[appprod]: PS C:\myapp> edit app.config

so edit "filename" just seems to hang, from powershell.exe or from powershell_ise.exe

The only thing I can think of is back out of the pssession and "start \webprod\c$\inetpub\myapp\web.config", which would open visual studio.

[appprod]: PS C:\myapp> exit

PS C:\Users\guutlee> start \agobuild\c$\myapp\app.config

PS C:\Users\guutlee> Enter-PSSession -ComputerName appprod

[appprod]: PS C:\Users\guutlee\Documents> cd \myapp

[appprod]: PS C:\myapp> myapp.exe

Of course with this I have to re-find the file, hope that the c$ share is available and accessible, and the reconnect my pssession and re-find my working directory when I want to go on. It doesn't seem very elegant.

I could maybe wrap this is a function, but having a hard time wrapping my head around that..

so how do I conveniently edit a file with a remote pssession?

EDIT

kbrimington's post got me thinking me about the -X option to ssh. probably would be an awesome thing for powershell sessions to be able to forward windowed apps back to the original windowing environment...

but still I'd be happy just to edit the file.

EDIT

tests using vi, emacs, cmd and edit

PS C:\Users\Meredith> Enter-PSSession -ComputerName appprod

[appprod]: PS C:\Users\guutlee\Documents> C:\vim\vim72\vim filename.txt

[appprod]: PS C:\Users\guutlee\Documents> C:\emacs-23.2\bin\emacs.exe -nw filename.txt

emacs.exe : emacs: standard input is not a tty

+ CategoryInfo          \: NotSpecified: (emacs: standard input is not a tty:String) [], RemoteException

+ FullyQualifiedErrorId \: NativeCommandError

[appprod]: PS C:\Users\guutlee\Documents> cmd

Microsoft Windows [Version 6.1.7600]

Copyright (c) 2009 Microsoft Corporation. All rights reserved.

C:\Users\guutlee\Documents>

[appprod]: PS C:\Users\guutlee\Documents> edit filename.txt

vi and edit hang (Control-C to get a prompt back)

cmd runs, producing a prompt, but immediately exits back to the powershell prompt

emacs produces the error (standard input is not a tty)

EDIT

Jered suggests pulling the file back locally to edit. I embellished his answer to copying using pssessions rather than UNCs (perhaps this is what he intended)

PS C:\Users\Meredith> Invoke-Command -Session $ps -ScriptBlock {get-content c:/inetpub/myapp/web.config} > web.config

edit web config

PS C:\Users\Meredith> get-content web.config | Invoke-Command -Session $ps -ScriptBlock {set-content c:/inetpub/myapp/web.config}

Potentially we could run the invoke-commands in either direction, local to remote or remote back to local.

回答1:

If you are using Powershell 5, you can use command called PSEdit. It only works from ISE.

1. So first, open PowerShell ISE
2. Then open remote session to the remote computer using Enter-PSSession
3. Then edit the file using PsEdit 'filename'

The remote file will be opened in a new tab in your (local) ISE window.

Actually I found this answer from the comments section of this SO question , but I think it will be helpful for others if I post it as answer here.

回答2:

After much digging around, I found something that seems relevant in the powershell help documentation. At the powershell prompt, type:

help about_remote_troubleshooting

At the very end of the help file that is displayed, there is a section entitled 'TROUBLESHOOTING UNRESPONSIVE BEHAVIOUR', which states:

TROUBLESHOOTING UNRESPONSIVE BEHAVIOR

This section discusses remoting problems that prevent a command from completing and prevent or delay the return of the Windows PowerShell prompt.

HOW TO INTERRUPT A COMMAND

---

Some native Windows programs, such as programs with a user interface, console applications that prompt for input, and console applications that use the Win32 console API, do not work correctly in the Windows PowerShell remote host.

When you use these programs, you might see unexpected behavior, such as no output, partial output, or a remote command that does not complete. To end an unresponsive program, type CTRL + C. To view any errors that might have been reported, type "$error" in the local host and the remote session.

Thus it would seem even non-GUI console applications such as VIM won't work unfortunately. Anyone care to shed a little light on why this might be the case and/or whether it can be worked around? I would REALLY love it if I could use vim over powershell remoting.

回答3:

Can you not pull the file locally, edit it and post it? I know this is tedious and not elegant but it seems editors are presently having issue with remote sessions.

E.g.,

Get-Content REMOTE\Filename.txt > LOCAL\Filename.txt

Make your changes locally and then

Set-Content -path REMOTE\Filename.txt -value (get-content LOCAL\Filename.txt)

EDIT

Also if you are only replacing certain instances you can do this pretty easily.

E.g.,

Get-Content REMOTE\Filename.txt | foreach-object { $_ -replace "OLD", "NEW" } | Set-Content REMOTE\Filename.txt

回答4:

PowerShell_ISE.exe \\REMOTE\...\File.txt 

will load and edit the file directly and save it back to the remote computer in one step and, since its command line, easy to build functions using it. Doesn't get around sharing problems, but the easiest way I've found.

回答5:

First, create a temp folder on the local machine (LOCALTEMPFOLDER). Then, use the following function:

function vimrem {param([parameter(position=0,mandatory=$true)][string]$Session, [parameter(position=1,mandatory=$true)][string]$Path)

$TempFile = split-path -path $Path -leaf

copy-item -fromsession $Session -path $Path -destination LOCALTEMPFOLDER\$TempFile

vim $LOCALTEMPFOLDER\$TempFile

copy-item -tosession $Session -path LOCALTEMPFOLDER\$TempFile -destination $Path

remove-item -path LOCALTEMPFOLDER\$TempFile

}

This should work, but you will have leave an interactive session before using this function.

回答6:

Try it out using a console-based editor such as VI or Emacs. As in my comment, I think the problem is that the edit command is bound to a windowed application which, in turn, is not virtualized across a remote session.

回答7:

I try all the above suggestion and even other microsoft related solution but none works the way you and I want --"full interactive and responsive shell"--. If you really want to have the ssh experience that unix users have from the beggining of time i recomend you install an ssh server. I personally use freesshd, you can find it here http://www.freesshd.com and instructions of how to configure it here http://www.windowsnetworking.com/articles_tutorials/install-SSH-Server-Windows-Server-2008.html. After you make all that it says in the instructions you only need to use any ssh client app to connect to your computer and use powershell full interactive. Vim, edit, emacs or whatever you use to edit a file is going to work without any problem.

i encourage you to not waste your time with psremoting, telnet, winrs, psexec, trying to achieve what a real interactive shell provide (i already lost it, T_T). Try that ssh server an see for your self.

回答8:

I got nano to work easily over SSH to PowerShell. It's available in Chocolatey so you can just do...

choco install nano -y

Then you can just do...

nano filename